#031315

Accessibility

AAA

18.96:1

Vs white / black

18.96:1 · 1.11:1

Sources

Library color

Codes

Formats

HEX

#031315

RGB

rgb(3, 19, 21)

RGBA

rgba(3, 19, 21, 1)

HSL

hsl(187, 75%, 5%)

HSLA

hsla(187, 75%, 5%, 1)

HSV

hsv(187, 86%, 8%)

LAB

lab(4.87% -4.37 -2.93)

LCH

lch(4.87% 5.26 213.84)

OKLAB

oklab(0.1728 -0.0217 -0.0102)

OKLCH

oklch(0.1728 0.024 205.18)

XYZ

xyz(0.41, 0.54, 0.79)

CMYK

cmyk(86%, 10%, 0%, 92%)

CSS

color: #031315;

CSS variable

--color-031315: #031315;

SCSS

$color-031315: #031315;

JavaScript

const color = "#031315";

TypeScript

const color: string = "#031315";

React

style={{ backgroundColor: "#031315" }}

JSON

{ "hex": "#031315", "rgb": { "r": 3, "g": 19, "b": 21 }, "oklch": "oklch(0.1728 0.024 205.18)" }

Export

Developer code

css

:root {
  --#031315-1: #031315;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

neutral-950

Very different · ΔE 6.31 · #0A0A0A

Nearest CSS named color

Black

Very different · ΔE 6.81 · #000000

Nearest Material color

grey-900

Very different · ΔE 7.87 · #212121

Nearest Bootstrap color

dark

Very different · ΔE 7.59 · #212529

OKLCH

Perceptual 50–950 scale

Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.

50e7f9fc 100d9ecee 200c6d8da 300afc2c4 40091a6a9 500768b8d 600627476 7004d5d5f 800374749 900233234 9500f1d1f

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

eaebec d5d8d8 c0c4c5 abb0b1 969d9e 81898a 6c7577 576263 424e50 2d3a3c 182729 031315 031113 031012 020e10 020d0e 020b0c 020a0b 010809 010607 010505 000303 000202

Palette

Tints

Mixed toward white — soft backgrounds and highlights

eaebec d5d8d8 c0c4c5 abb0b1 969d9e 81898a 6c7577 576263 424e50 2d3a3c 182729

Palette

Shades

Mixed toward black — depth, text, and emphasis

031113 031012 020e10 020d0e 020b0c 020a0b 010809 010607 010505 000303 000202

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

0d1c1e 182527 222e30 2d3739 374042 424a4b 4c5353 565c5c 616565 6b6e6e 767777

Harmony

Complementary

Opposite on the color wheel for contrast

#031315Stop 1 #160503Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#03160FStop 1 #031315Stop 2 #030B16Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#031315Stop 1 #160314Stop 2 #141603Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#031315Stop 1 #16030BStop 2 #160F03Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#0D5059Stop 1 #168D9CStop 2 #20C9DFStop 3 #63D9E9Stop 4 #A6E9F2Stop 5

Using this color

Where #031315 works

#031315 (#031315) sits in the black family at about 187° hue, 75% saturation, and 5% lightness. Contrast is 18.96:1 on white and 1.11:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: neutral-950 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

body text, chrome, and dark-mode surfaces
text or icons on a white canvas

On a black or near-black UI, #031315 is 1.11:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Power, elegance, and clarity. Luxury brands and high-contrast interfaces. Common uses still include buttons, charts, and accents in the Black range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Tailwind neutral 950#0A0A0A Tailwind neutral 900#171717 Tailwind zinc 950#09090B Black#000000 Tailwind stone 950#0C0A09 Tailwind gray 950#030712 Tailwind zinc 900#18181B Bootstrap dark#212529 Material Grey 900#212121 Material You On Surface#1C1B1F Tailwind stone 900#1C1917 Tailwind neutral 800#262626