#373F09#373F09

#373F09 is a dark, moderate yellow. Relative luminance 0.044; OKLCH L 34.9% C 0.074 H 117.9°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#373F09
RGB	rgb(55, 63, 9)
HSL	hsl(69, 75%, 14%)
HSV	hsv(69, 86%, 25%)
CMYK	cmyk(12.7%, 0%, 85.7%, 75.3%)
CIE-LAB	lab(24.91, -11.56, 29.71)
CIE-LCH	lch(24.91, 31.88, 111.26°)
OKLab	oklab(34.87% -0.0347 0.0655)
OKLCH	oklch(34.87% 0.074 117.9)
XYZ	xyz(3.4024, 4.3870, 0.9259)
Luminance	0.0439 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373F09 #11093F

analogous

#3F2C09 #373F09 #1C3F09

triadic

#373F09 #09373F #3F0937

tetradic

#373F09 #093F2C #11093F #3F091C

square

#373F09 #093F2C #11093F #3F091C

split-complementary

#373F09 #091C3F #2C093F

monochromatic

#171B04 #171B04 #373F09 #667511 #95AA18

Accessibility & contrast

On white

11.19

#373F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#373F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373F09

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373F09	#FFFFFF	#000000	##FFFFFF
##373F09	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443B01

Deuteranopia (green-blind)

#433B0E

Tritanopia (blue-blind)

#3B3B35

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #373f09;
/* rgb */ color: rgb(55, 63, 9);
/* oklch */ color: oklch(34.9% 0.074 117.9);

Tailwind

colors: {
  custom: {
    50: '#70744d',
    500: '#373f09',
    950: '#000000',
  },
}

SCSS

$custom: #373f09;
$custom-light: #70744d;
$custom-dark: #000000;

JSON

{
  "hex": "#373f09",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 9
  },
  "hsl": {
    "h": 68.889,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.34874,
    "c": 0.07409,
    "h": 117.9
  },
  "luminance": 0.04387
}

Semantic roles & 50–950 ramp

primary

#373F09

secondary

#34277D

accent

#36F252

background

#F6F7F4

surface

#ECEDE7

border

#C7C8C3

text

#080801

muted

#7B7B77

Preview Lab

Preview with #373F09

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

Preview Lab → · Contrast checker → · Palette generator →