#373F03#373F03

#373F03 is a dark, moderate yellow. Relative luminance 0.044; OKLCH L 34.8% C 0.078 H 117.6°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#373F03
RGB	rgb(55, 63, 3)
HSL	hsl(68, 91%, 13%)
HSV	hsv(68, 95%, 25%)
CMYK	cmyk(12.7%, 0%, 95.2%, 75.3%)
CIE-LAB	lab(24.87, -11.91, 32.11)
CIE-LCH	lch(24.87, 34.25, 110.35°)
OKLab	oklab(34.83% -0.0364 0.0695)
OKLCH	oklch(34.83% 0.078 117.6)
XYZ	xyz(3.3696, 4.3739, 0.7529)
Luminance	0.0437 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373F03 #0B033F

analogous

#3F2903 #373F03 #193F03

triadic

#373F03 #03373F #3F0337

tetradic

#373F03 #033F29 #0B033F #3F0319

square

#373F03 #033F29 #0B033F #3F0319

split-complementary

#373F03 #03193F #29033F

monochromatic

#191D01 #191D01 #373F03 #6A7906 #9DB409

Accessibility & contrast

On white

11.20

#373F03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#373F03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373F03

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373F03	#FFFFFF	#000000	##FFFFFF
##373F03	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443B00

Deuteranopia (green-blind)

#433B08

Tritanopia (blue-blind)

#3B3B34

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #373f03;
/* rgb */ color: rgb(55, 63, 3);
/* oklch */ color: oklch(34.8% 0.078 117.6);

Tailwind

colors: {
  custom: {
    50: '#70734a',
    500: '#373f03',
    950: '#000000',
  },
}

SCSS

$custom: #373f03;
$custom-light: #70734a;
$custom-dark: #000000;

JSON

{
  "hex": "#373f03",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 3
  },
  "hsl": {
    "h": 68,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.34828,
    "c": 0.0784,
    "h": 117.6
  },
  "luminance": 0.04374
}

Semantic roles & 50–950 ramp

primary

#373F03

secondary

#2A1D81

accent

#29FF45

background

#F6F7F4

surface

#ECEDE7

border

#C7C8C3

text

#080801

muted

#7B7B77

Preview Lab

Preview with #373F03

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

Preview Lab → · Contrast checker → · Palette generator →