#373B04#373B04

#373B04 is a dark, moderate yellow. Relative luminance 0.039; OKLCH L 33.7% C 0.073 H 114.0°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#373B04
RGB	rgb(55, 59, 4)
HSL	hsl(64, 87%, 12%)
HSV	hsv(64, 93%, 23%)
CMYK	cmyk(6.8%, 0%, 93.2%, 76.9%)
CIE-LAB	lab(23.50, -9.47, 30.36)
CIE-LCH	lch(23.50, 31.80, 107.32°)
OKLab	oklab(33.73% -0.0295 0.0663)
OKLCH	oklch(33.73% 0.073 114)
XYZ	xyz(3.1615, 3.9490, 0.7105)
Luminance	0.0395 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373B04 #08043B

analogous

#3B2404 #373B04 #1B3B04

triadic

#373B04 #04373B #3B0437

tetradic

#373B04 #043B24 #08043B #3B041B

square

#373B04 #043B24 #08043B #3B041B

split-complementary

#373B04 #041B3B #24043B

monochromatic

#1B1D02 #1B1D02 #373B04 #6C7408 #A2AE0C

Accessibility & contrast

On white

11.73

#373B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#373B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373B04

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373B04	#FFFFFF	#000000	##FFFFFF
##373B04	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403800

Deuteranopia (green-blind)

#403809

Tritanopia (blue-blind)

#3B3731

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #373b04;
/* rgb */ color: rgb(55, 59, 4);
/* oklch */ color: oklch(33.7% 0.073 114.0);

Tailwind

colors: {
  custom: {
    50: '#70704a',
    500: '#373b04',
    950: '#000000',
  },
}

SCSS

$custom: #373b04;
$custom-light: #70704a;
$custom-dark: #000000;

JSON

{
  "hex": "#373b04",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 4
  },
  "hsl": {
    "h": 64.364,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.3373,
    "c": 0.07254,
    "h": 114
  },
  "luminance": 0.03949
}

Semantic roles & 50–950 ramp

primary

#373B04

secondary

#251E7D

accent

#2AFD3A

background

#F6F6F4

surface

#ECECE7

border

#C7C7C3

text

#080701

muted

#7B7A77

Preview Lab

Preview with #373B04

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

Preview Lab → · Contrast checker → · Palette generator →