#37180B#37180B

#37180B is a dark, muted orange. Relative luminance 0.015; OKLCH L 25.1% C 0.054 H 42.6°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#37180B
RGB	rgb(55, 24, 11)
HSL	hsl(18, 67%, 13%)
HSV	hsv(18, 80%, 22%)
CMYK	cmyk(0%, 56.4%, 80%, 78.4%)
CIE-LAB	lab(12.54, 14.14, 14.46)
CIE-LCH	lch(12.54, 20.23, 45.64°)
OKLab	oklab(25.14% 0.0399 0.0367)
OKLCH	oklch(25.14% 0.054 42.6)
XYZ	xyz(1.9628, 1.4899, 0.5008)
Luminance	0.0149 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37180B #0B2A37

analogous

#370B14 #37180B #372E0B

triadic

#37180B #0B3718 #180B37

tetradic

#37180B #14370B #0B2A37 #2E0B37

square

#37180B #14370B #0B2A37 #2E0B37

split-complementary

#37180B #0B372E #0B1437

monochromatic

#1A0B05 #1A0B05 #37180B #6A2E15 #9D451F

Accessibility & contrast

On white

16.18

#37180B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#37180B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37180B

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37180B	#FFFFFF	#000000	##FFFFFF
##37180B	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201C0A

Deuteranopia (green-blind)

#28230A

Tritanopia (blue-blind)

#3D1215

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #37180b;
/* rgb */ color: rgb(55, 24, 11);
/* oklch */ color: oklch(25.1% 0.054 42.6);

Tailwind

colors: {
  custom: {
    50: '#71554b',
    500: '#37180b',
    950: '#000000',
  },
}

SCSS

$custom: #37180b;
$custom-light: #71554b;
$custom-dark: #000000;

JSON

{
  "hex": "#37180b",
  "rgb": {
    "r": 55,
    "g": 24,
    "b": 11
  },
  "hsl": {
    "h": 17.727,
    "s": 66.667,
    "l": 12.941
  },
  "oklch": {
    "l": 0.25137,
    "c": 0.05419,
    "h": 42.6
  },
  "luminance": 0.0149
}

Semantic roles & 50–950 ramp

primary

#37180B

secondary

#2A5E74

accent

#B7EA3E

background

#F7F5F4

surface

#EDE8E7

border

#C8C4C3

text

#080301

muted

#7B7877

Preview Lab

Preview with #37180B

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

Preview Lab → · Contrast checker → · Palette generator →