Seafoam Green Color Codes

Seafoam Green is a light, desaturated green with the hex code #99BB88, RGB values of 153, 187, 136 and an HSL value of hsl(100, 27%, 63%).

HEX	#99BB88
RGB	153, 187, 136
HSL	hsl(100, 27%, 63%)
HSV	100°, 27%, 73%
CMYK	18%, 0%, 27%, 27%
LAB	72.29, -20.98, 22.17
CIELCHuv	72.29, 38.00, 116.52°

Nearest Pantone: PMS 577 C ΔE 9.5 · approximate
Nearest CSS name: darkseagreen ΔE 4.1

Community source color-name-list, community color-name index

Seafoam Green Color Hex Code

The Seafoam Green color hex code is #99BB88. Those six digits are three pairs, 99 for red, BB for green and 88 for blue, which is the same triplet a browser reads from the CSS value below.

#99BB88

Seafoam Green Color RGB Code

The Seafoam Green RGB code is rgb(153, 187, 136). Green carries the most light at 187 of 255, which is what puts this color where it sits on the wheel.

rgb(153, 187, 136)

Seafoam Green Color HSV Code

The Seafoam Green HSV code is 100°, 27%, 73%. Read it as a hue of 100 degrees, 27% saturation and 73% value, which is the form most color pickers use because moving one number changes one thing.

100°, 27%, 73%

Seafoam Green Color CIELChuv Code

The Seafoam Green CIELCHuv code is 72.29, 38.00, 116.52°. Unlike hex or RGB this one is perceptual: lightness 72 means light to the eye rather than to the screen, and chroma 38 is how far it sits from grey.

72.29, 38.00, 116.52°

Tonal scale

What are Seafoam Green Color Palettes?

A shade mixes toward black, a tint toward white, a tone toward grey. Every step keeps the hue and is copy-ready.

Shades, toward black

Tints, toward white

Tones, toward grey

Open in the shades & tints generator →

Palettes

What are Seafoam Green Color Palette Codes?

Each of these is a hue rotation from #99BB88. They are generated, not curated, so they are exact.

Complementary

Rotate a half turn and you land on #AA88BB, a mid-tone, desaturated purple. Maximum hue distance, which is what makes a complement read as emphasis rather than decoration. Neither is especially saturated, so this pairing stays calm enough for large areas of both.

Analogous

Step 30 degrees in each direction and you get #B3BB88 and #88BB91. Neighbouring hues hold together without effort, which is what makes analogous sets the safe choice for large areas.

Triadic

#8899BB and #BB8899 complete an even 120 degree split. Three fully independent hues, so one has to lead: keep this base dominant and let the other two appear in small quantities.

Split-complementary

Instead of the direct complement, this takes the two hues either side of it: #9188BB and #BB88B3. Almost the same contrast, without the edge shimmer a true complementary pair produces at high saturation.

Tetradic

Two complementary pairs forming a rectangle: this base with #AA88BB, and #88B3BB with #BB9188. The richest of the five and the hardest to balance, so treat the darkest of the four as the lead and hold the other three well back.

See these on the color wheel →

Accessibility

Measured against white and against black, with a separate verdict for each element type. Small text, large text and UI components have different thresholds, so one pass or fail for the whole color would be wrong roughly a third of the time.

White background

2.14:1

2.14

contrast ratio on white background

Element	AA	AAA
Small text needs 4.5:1 / 7:1	Fails	Fails
Large text needs 3:1 / 4.5:1	Fails	Fails
UI component needs 3:1	Fails	n/a

Black background

9.82:1

9.82

contrast ratio on black background

Element	AA	AAA
Small text needs 4.5:1 / 7:1	Passes	Passes
Large text needs 3:1 / 4.5:1	Passes	Passes
UI component needs 3:1	Passes	n/a

At 2.14:1 against white, Seafoam Green is a fill color rather than a text color. Use it for surfaces, borders and large display type, and set the copy in ink. Text placed on it should be black, which gives 9.82:1.

Check Seafoam Green against another color →

Color vision

How Seafoam Green looks with color blindness

Around 300 million people see color differently from the way it is specified. Each card shows the actual color beside how it appears, and how common that form of vision is.

Protanopia

About 1% of men

actual

#A9A996

Seafoam Green shifts noticeably here. ΔE 21.8

No working red cones. Reds darken sharply and drift toward the same muddy olive as green.

Deuteranopia

About 1% of men

actual

#A7A49A

Seafoam Green changes substantially here. ΔE 26.6

No working green cones. With the milder deuteranomaly at nearer 6% of men, this is by far the most common form, and the one worth designing around.

Tritanopia

About 1 in 10,000

actual

#9BA1A3

Seafoam Green changes substantially here. ΔE 31.4

No working blue cones. Blues shift toward green and yellows toward pink. Rare, and unlike the others it is not sex-linked, so it affects men and women equally.

Achromatopsia

About 1 in 30,000

actual

#B1B1B1

Seafoam Green changes substantially here. ΔE 30.5

No color vision at all. Also a fair proxy for how the color survives a greyscale print or a failing screen.

To a deuteranope, the most common form, Seafoam Green reads as #A7A49A. That is a shift of ΔE 26.6, so it is a different color to roughly one man in sixteen. It sits in the green range, the other half of the red-green pair. Against a red of similar lightness it will not read as distinct, so anything depending on that contrast needs a second cue. The widest shift is under tritanopia, at ΔE 31.4. The rule this leads to needs no simulator: never let color be the only thing carrying a message. Add a label, an icon, or a clear difference in lightness, and the problem disappears for everyone.

Simulate a whole palette →

Snippets

Using Seafoam Green in code

:root {
  --seafoam-green: #99BB88;
}

.example {
  color: var(--seafoam-green);
}

// tailwind.config.js
theme: {
  extend: {
    colors: {
      'seafoam-green': '#99BB88',
    },
  },
}

// SwiftUI takes 0–1 components, not 0–255.
let seafoamGreen = Color(
    red: 0.600,
    green: 0.733,
    blue: 0.533
)

<!-- res/values/colors.xml -->
<color name="seafoam_green">#99BB88</color>

// Flutter wants ARGB: FF for full opacity, then the hex.
const seafoamGreen = Color(0xFF99BB88);

Meaning

What is the Meaning of Seafoam Green Color?

Seafoam Green reads as calm and the outdoors. It is saturated enough to notice and restrained enough to repeat, and at 27% saturation with a perceptual lightness of 72 it behaves as a cool-leaning color, which is the practical reason it turns up where it does.

What are Other Names of Seafoam Green Color?

The closest CSS keyword is DarkSeaGreen (#8FBC8B), though it is not a match: Delta-E 4.1 means the difference is visible side by side. For print the nearest Pantone is PMS 577 C at #B5CC8E. The name Seafoam Green comes from the community color-name index rather than a standards body, so you will meet it under other names elsewhere.

How is Seafoam Green Color Made?

On a screen Seafoam Green is made by additive light: 153 red, 187 green and 136 blue out of 255, with green leading and 136 as the floor. In print it is subtractive instead, mixed as 18%, 0%, 27%, 27%. Starting from the pure hue at 100 degrees, Seafoam Green is a tone, so it is that hue knocked back with grey.