#373F04#373F04

#373F04 is a dark, moderate yellow. Relative luminance 0.044; OKLCH L 34.8% C 0.078 H 117.7°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#373F04
RGB	rgb(55, 63, 4)
HSL	hsl(68, 88%, 13%)
HSV	hsv(68, 94%, 25%)
CMYK	cmyk(12.7%, 0%, 93.7%, 75.3%)
CIE-LAB	lab(24.88, -11.85, 31.71)
CIE-LCH	lch(24.88, 33.85, 110.49°)
OKLab	oklab(34.84% -0.0361 0.0688)
OKLCH	oklch(34.84% 0.078 117.7)
XYZ	xyz(3.3751, 4.3760, 0.7817)
Luminance	0.0438 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373F04 #0C043F

analogous

#3F2904 #373F04 #193F04

triadic

#373F04 #04373F #3F0437

tetradic

#373F04 #043F29 #0C043F #3F0419

square

#373F04 #043F29 #0C043F #3F0419

split-complementary

#373F04 #04193F #29043F

monochromatic

#191D02 #191D02 #373F04 #697908 #9BB20B

Accessibility & contrast

On white

11.20

#373F04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#373F04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373F04

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373F04	#FFFFFF	#000000	##FFFFFF
##373F04	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	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)

#433B09

Tritanopia (blue-blind)

#3B3B34

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #373f04;
/* rgb */ color: rgb(55, 63, 4);
/* oklch */ color: oklch(34.8% 0.078 117.7);

Tailwind

colors: {
  custom: {
    50: '#70734b',
    500: '#373f04',
    950: '#000000',
  },
}

SCSS

$custom: #373f04;
$custom-light: #70734b;
$custom-dark: #000000;

JSON

{
  "hex": "#373f04",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 4
  },
  "hsl": {
    "h": 68.136,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.34835,
    "c": 0.07767,
    "h": 117.7
  },
  "luminance": 0.04376
}

Semantic roles & 50–950 ramp

primary

#373F04

secondary

#2C1E80

accent

#2AFE46

background

#F6F7F4

surface

#ECEDE7

border

#C7C8C3

text

#080801

muted

#7B7B77

Preview Lab

Preview with #373F04

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

Preview Lab → · Contrast checker → · Palette generator →