#51370E#51370E

#51370E is a dark, moderate orange. Relative luminance 0.045; OKLCH L 35.9% C 0.066 H 74.5°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#51370E
RGB	rgb(81, 55, 14)
HSL	hsl(37, 71%, 19%)
HSV	hsv(37, 83%, 32%)
CMYK	cmyk(0%, 32.1%, 82.7%, 68.2%)
CIE-LAB	lab(25.30, 7.29, 28.89)
CIE-LCH	lch(25.30, 29.79, 75.84°)
OKLab	oklab(35.87% 0.0177 0.0636)
OKLCH	oklch(35.87% 0.066 74.5)
XYZ	xyz(4.8391, 4.5138, 1.0318)
Luminance	0.0451 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51370E #0E2851

analogous

#51150E #51370E #49510E

triadic

#51370E #0E5137 #370E51

tetradic

#51370E #0E5115 #0E2851 #510E49

square

#51370E #0E5115 #0E2851 #510E49

split-complementary

#51370E #0E4951 #150E51

monochromatic

#1A1205 #1D1405 #51370E #855A17 #B97E20

Accessibility & contrast

On white

11.04

#51370E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#51370E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51370E

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51370E	#FFFFFF	#000000	##FFFFFF
##51370E	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403808

Deuteranopia (green-blind)

#463F0F

Tritanopia (blue-blind)

#59302F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #51370e;
/* rgb */ color: rgb(81, 55, 14);
/* oklch */ color: oklch(35.9% 0.066 74.5);

Tailwind

colors: {
  custom: {
    50: '#856d4f',
    500: '#51370e',
    950: '#000000',
  },
}

SCSS

$custom: #51370e;
$custom-light: #856d4f;
$custom-dark: #000000;

JSON

{
  "hex": "#51370e",
  "rgb": {
    "r": 81,
    "g": 55,
    "b": 14
  },
  "hsl": {
    "h": 36.716,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.35873,
    "c": 0.06601,
    "h": 74.5
  },
  "luminance": 0.04513
}

Semantic roles & 50–950 ramp

primary

#51370E

secondary

#2F538C

accent

#80ED3A

background

#F8F6F4

surface

#F0EBE7

border

#CBC6C3

text

#0B0702

muted

#7C7A78

Preview Lab

Preview with #51370E

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

Preview Lab → · Contrast checker → · Palette generator →