#37331B#37331B

#37331B is a dark, muted yellow. Relative luminance 0.033; OKLCH L 31.9% C 0.039 H 100.0°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#37331B
RGB	rgb(55, 51, 27)
HSL	hsl(51, 34%, 16%)
HSV	hsv(51, 51%, 22%)
CMYK	cmyk(0%, 7.3%, 50.9%, 78.4%)
CIE-LAB	lab(21.05, -2.45, 15.83)
CIE-LCH	lch(21.05, 16.02, 98.80°)
OKLab	oklab(31.86% -0.0068 0.0384)
OKLCH	oklch(31.86% 0.039 100)
XYZ	xyz(2.9573, 3.2591, 1.5100)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37331B #1B1F37

analogous

#37251B #37331B #2D371B

triadic

#37331B #1B3733 #331B37

tetradic

#37331B #1B3725 #1B1F37 #371B2D

square

#37331B #1B3725 #1B1F37 #371B2D

split-complementary

#37331B #1B2D37 #251B37

monochromatic

#15130A #15130A #37331B #60592F #897F43

Accessibility & contrast

On white

12.71

#37331B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#37331B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37331B

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37331B	#FFFFFF	#000000	##FFFFFF
##37331B	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373219

Deuteranopia (green-blind)

#38331C

Tritanopia (blue-blind)

#3B302D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #37331b;
/* rgb */ color: rgb(55, 51, 27);
/* oklch */ color: oklch(31.9% 0.039 100.0);

Tailwind

colors: {
  custom: {
    50: '#6e6a57',
    500: '#37331b',
    950: '#000000',
  },
}

SCSS

$custom: #37331b;
$custom-light: #6e6a57;
$custom-dark: #000000;

JSON

{
  "hex": "#37331b",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 27
  },
  "hsl": {
    "h": 51.429,
    "s": 34.146,
    "l": 16.078
  },
  "oklch": {
    "l": 0.31858,
    "c": 0.03895,
    "h": 100
  },
  "luminance": 0.03259
}

Semantic roles & 50–950 ramp

primary

#37331B

secondary

#42486C

accent

#6DCA5E

background

#F6F6F5

surface

#ECEBE9

border

#C7C6C5

text

#070603

muted

#7A7A78

Preview Lab

Preview with #37331B

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

Preview Lab → · Contrast checker → · Palette generator →