Jet Black Color Codes

Jet Black is a very dark neutral grey with the hex code #353337, RGB values of 53, 51, 55 and an HSL value of hsl(270, 4%, 21%).

HEX	#353337
RGB	53, 51, 55
HSL	hsl(270, 4%, 21%)
HSV	270°, 7%, 22%
CMYK	4%, 7%, 0%, 78%
LAB	21.58, 1.81, -2.21
CIELCHuv	21.58, 2.65, 287.02°

Nearest Pantone: PMS 433 C ΔE 4.8 · approximate
Nearest CSS name: darkslategray ΔE 16.7

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

Jet Black Color Hex Code

The Jet Black color hex code is #353337. Those six digits are three pairs, 35 for red, 33 for green and 37 for blue, which is the same triplet a browser reads from the CSS value below.

#353337

Jet Black Color RGB Code

The Jet Black RGB code is rgb(53, 51, 55). Blue carries the most light at 55 of 255, which is what puts this color where it sits on the wheel.

rgb(53, 51, 55)

Jet Black Color HSV Code

The Jet Black HSV code is 270°, 7%, 22%. Read it as a hue of 270 degrees, 7% saturation and 22% value, which is the form most color pickers use because moving one number changes one thing.

270°, 7%, 22%

Jet Black Color CIELChuv Code

The Jet Black CIELCHuv code is 21.58, 2.65, 287.02°. Unlike hex or RGB this one is perceptual: lightness 22 means dark to the eye rather than to the screen, and chroma 3 is how far it sits from grey.

21.58, 2.65, 287.02°

Tonal scale

What are Jet Black 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 Jet Black Color Palette Codes?

Each of these is a hue rotation from #353337. They are generated, not curated, so they are exact.

Complementary

Half a turn away is #353733, a very dark neutral grey. This is the widest separation the wheel offers, and the reason complementary pairs are the default for anything that must stand out. Neither is especially saturated, so this pairing stays calm enough for large areas of both.

Analogous

Either side sit #333337 and #373337, 30 degrees out. Low tension by construction: useful when you need several related tones that still feel like one choice.

Triadic

#373533 and #333735 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: #373733 and #333733. 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 #353733, and #373333 with #333737. The richest of the five and the hardest to balance, so treat this base 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

12.50:1

12.50

contrast ratio on white 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

Black background

1.68:1

1.68

contrast ratio on black 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

Jet Black clears WCAG AA against white at 12.50:1, so it is safe for body copy as well as headings. Text placed on it should be white, which gives 12.50:1. With very little saturation it behaves as a neutral, which makes it a good background or a supporting tone alongside a stronger accent.

Check Jet Black against another color →

Color vision

How Jet Black 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

#343436

Jet Black holds up almost unchanged here. ΔE 1.7

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

Deuteranopia

About 1% of men

actual

#343436

Jet Black holds up almost unchanged here. ΔE 1.7

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

#353535

Jet Black holds up almost unchanged here. ΔE 2.9

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

#343434

Jet Black holds up almost unchanged here. ΔE 2.9

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

Jet Black is stable under the common forms of color blindness: to a deuteranope it reads as #343436, a shift of only ΔE 1.7, which is close to imperceptible. The widest shift is under tritanopia, at ΔE 2.9. 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 Jet Black in code

:root {
  --jet-black: #353337;
}

.example {
  color: var(--jet-black);
}

// tailwind.config.js
theme: {
  extend: {
    colors: {
      'jet-black': '#353337',
    },
  },
}

// SwiftUI takes 0–1 components, not 0–255.
let jetBlack = Color(
    red: 0.208,
    green: 0.200,
    blue: 0.216
)

<!-- res/values/colors.xml -->
<color name="jet_black">#353337</color>

// Flutter wants ARGB: FF for full opacity, then the hex.
const jetBlack = Color(0xFF353337);

Meaning

What is the Meaning of Jet Black Color?

Jet Black reads as formality. It is dark enough to hold white type without help, and at 4% saturation with a perceptual lightness of 22 it behaves as a neutral color, which is the practical reason it turns up where it does.

What are Other Names of Jet Black Color?

The closest CSS keyword is DarkSlateGray (#2F4F4F), though it is not a match: Delta-E 16.7 means the difference is visible side by side. For print the nearest Pantone is PMS 433 C at #30383A. The name Jet Black comes from the community color-name index rather than a standards body, so you will meet it under other names elsewhere.

How is Jet Black Color Made?

On a screen Jet Black is made by additive light: 53 red, 51 green and 55 blue out of 255, with blue leading and 51 as the floor. In print it is subtractive instead, mixed as 4%, 7%, 0%, 78%. Starting from the pure hue at 270 degrees, Jet Black is a shade, so it is that hue with black added.