Sea Green Color Codes
Sea Green is a mid-tone, muted spring green with the hex code #2E8B57, RGB values of 46, 139, 87 and an HSL value of hsl(146, 50%, 36%).
| HEX | #2E8B57 |
|---|---|
| RGB | 46, 139, 87 |
| HSL | hsl(146, 50%, 36%) |
| HSV | 146°, 67%, 55% |
| CMYK | 67%, 0%, 37%, 45% |
| LAB | 51.53, -39.72, 20.05 |
| CIELCHuv | 51.53, 49.82, 140.82° |
- Nearest Pantone
- PMS 348 C ΔE 5.4 · approximate
- Nearest CSS name
-
seagreenΔE 0.0
Source CSS Color Module Level 4 keyword 'SeaGreen'
Sea Green Color Hex Code
The Sea Green color hex code is #2E8B57. Those six digits are three pairs, 2E for red, 8B for green and 57 for blue, which is the same triplet a browser reads from the CSS value below.
#2E8B57
Sea Green Color RGB Code
The Sea Green RGB code is rgb(46, 139, 87). Green carries the most light at 139 of 255, which is what puts this color where it sits on the wheel.
rgb(46, 139, 87)
Sea Green Color HSV Code
The Sea Green HSV code is 146°, 67%, 55%. Read it as a hue of 146 degrees, 67% saturation and 55% value, which is the form most color pickers use because moving one number changes one thing.
146°, 67%, 55%
Sea Green Color CIELChuv Code
The Sea Green CIELCHuv code is 51.53, 49.82, 140.82°. Unlike hex or RGB this one is perceptual: lightness 52 means mid-toned to the eye rather than to the screen, and chroma 50 is how far it sits from grey.
51.53, 49.82, 140.82°
Tonal scale
What are Sea 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
Palettes
What are Sea Green Color Palette Codes?
Each of these is a hue rotation from #2E8B57. They are generated, not curated, so they are exact.
Complementary
Rotate a half turn and you land on #8B2E62, a dark, muted magenta. 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 #338B2E and #2E8B86. Neighbouring hues hold together without effort, which is what makes analogous sets the safe choice for large areas.
Triadic
#572E8B and #8B572E 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: #862E8B and #8B2E33. 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 #8B2E62, and #2E338B with #8B862E. The richest of the five and the hardest to balance, so treat this base as the lead and hold the other three well back.
Accessibility
Contrast checker: is Sea Green accessible?
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
4.25:14.25
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 | Passes | Fails |
| UI component needs 3:1 | Passes | n/a |
Black background
4.95:14.95
contrast ratio on black background
| Element | AA | AAA |
|---|---|---|
| Small text needs 4.5:1 / 7:1 | Passes | Fails |
| Large text needs 3:1 / 4.5:1 | Passes | Passes |
| UI component needs 3:1 | Passes | n/a |
Against white Sea Green reaches 4.25:1, enough for large text and UI borders, but short of the 4.5:1 that body copy needs. Darken it for anything set small. Text placed on it should be black, which gives 4.95:1.
Color vision
How Sea 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#646567
Sea Green changes substantially here. ΔE 45.9
No working red cones. Reds darken sharply and drift toward the same muddy olive as green.
Deuteranopia
About 1% of men#5F586A
Sea Green changes substantially here. ΔE 56.4
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#377173
Sea Green changes substantially here. ΔE 35.3
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#7B7B7B
Sea Green changes substantially here. ΔE 44.5
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, Sea Green reads as #5F586A. That is a shift of ΔE 56.4, 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 deuteranopia, at ΔE 56.4. 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.
Snippets
Using Sea Green in code
:root {
--sea-green: #2E8B57;
}
.example {
color: var(--sea-green);
}// tailwind.config.js
theme: {
extend: {
colors: {
'sea-green': '#2E8B57',
},
},
}// SwiftUI takes 0–1 components, not 0–255.
let seaGreen = Color(
red: 0.180,
green: 0.545,
blue: 0.341
)<!-- res/values/colors.xml -->
<color name="sea_green">#2E8B57</color>// Flutter wants ARGB: FF for full opacity, then the hex.
const seaGreen = Color(0xFF2E8B57);