#31310B#31310B

#31310B is a dark, muted yellow. Relative luminance 0.029; OKLCH L 30.4% C 0.056 H 109.3°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#31310B
RGB	rgb(49, 49, 11)
HSL	hsl(60, 63%, 12%)
HSV	hsv(60, 78%, 19%)
CMYK	cmyk(0%, 0%, 77.6%, 80.8%)
CIE-LAB	lab(19.53, -5.95, 23.04)
CIE-LCH	lch(19.53, 23.80, 104.48°)
OKLab	oklab(30.43% -0.0184 0.0526)
OKLCH	oklch(30.43% 0.056 109.3)
XYZ	xyz(2.4254, 2.8738, 0.7435)
Luminance	0.0287 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31310B #0B0B31

analogous

#311E0B #31310B #1E310B

triadic

#31310B #0B3131 #310B31

tetradic

#31310B #0B311E #0B0B31 #310B1E

square

#31310B #0B311E #0B0B31 #310B1E

split-complementary

#31310B #0B1E31 #1E0B31

monochromatic

#191906 #191906 #31310B #636316 #959521

Accessibility & contrast

On white

13.34

#31310B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#31310B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31310B

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31310B	#FFFFFF	#000000	##FFFFFF
##31310B	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#362F06

Deuteranopia (green-blind)

#36300D

Tritanopia (blue-blind)

#352D29

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #31310b;
/* rgb */ color: rgb(49, 49, 11);
/* oklch */ color: oklch(30.4% 0.056 109.3);

Tailwind

colors: {
  custom: {
    50: '#6b684c',
    500: '#31310b',
    950: '#000000',
  },
}

SCSS

$custom: #31310b;
$custom-light: #6b684c;
$custom-dark: #000000;

JSON

{
  "hex": "#31310b",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 11
  },
  "hsl": {
    "h": 60,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.30426,
    "c": 0.05575,
    "h": 109.3
  },
  "luminance": 0.02874
}

Semantic roles & 50–950 ramp

primary

#31310B

secondary

#2A2A6E

accent

#41E641

background

#F6F6F4

surface

#EBEBE7

border

#C6C6C3

text

#070601

muted

#7A7A77

Preview Lab

Preview with #31310B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →