#373A04#373A04

#373A04 is a dark, moderate yellow. Relative luminance 0.038; OKLCH L 33.5% C 0.071 H 113.0°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#373A04
RGB	rgb(55, 58, 4)
HSL	hsl(63, 87%, 12%)
HSV	hsv(63, 93%, 23%)
CMYK	cmyk(5.2%, 0%, 93.1%, 77.3%)
CIE-LAB	lab(23.16, -8.86, 30.01)
CIE-LCH	lch(23.16, 31.29, 106.45°)
OKLab	oklab(33.46% -0.0278 0.0656)
OKLCH	oklch(33.46% 0.071 113)
XYZ	xyz(3.1106, 3.8472, 0.6936)
Luminance	0.0385 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373A04 #07043A

analogous

#3A2204 #373A04 #1C3A04

triadic

#373A04 #04373A #3A0437

tetradic

#373A04 #043A22 #07043A #3A041C

square

#373A04 #043A22 #07043A #3A041C

split-complementary

#373A04 #041C3A #22043A

monochromatic

#1B1D02 #1B1D02 #373A04 #6D7308 #A4AD0C

Accessibility & contrast

On white

11.87

#373A04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#373A04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373A04

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373A04	#FFFFFF	#000000	##FFFFFF
##373A04	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3700

Deuteranopia (green-blind)

#3F3808

Tritanopia (blue-blind)

#3C3630

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #373a04;
/* rgb */ color: rgb(55, 58, 4);
/* oklch */ color: oklch(33.5% 0.071 113.0);

Tailwind

colors: {
  custom: {
    50: '#70704a',
    500: '#373a04',
    950: '#000000',
  },
}

SCSS

$custom: #373a04;
$custom-light: #70704a;
$custom-dark: #000000;

JSON

{
  "hex": "#373a04",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 4
  },
  "hsl": {
    "h": 63.333,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.33455,
    "c": 0.07129,
    "h": 113
  },
  "luminance": 0.03847
}

Semantic roles & 50–950 ramp

primary

#373A04

secondary

#231E7C

accent

#2BFD36

background

#F6F6F4

surface

#ECECE7

border

#C7C7C3

text

#080701

muted

#7B7A77

Preview Lab

Preview with #373A04

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

Preview Lab → · Contrast checker → · Palette generator →