#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
RGBrgb(81, 55, 14)
HSLhsl(37, 71%, 19%)
HSVhsv(37, 83%, 32%)
CMYKcmyk(0%, 32.1%, 82.7%, 68.2%)
CIE-LABlab(25.30, 7.29, 28.89)
CIE-LCHlch(25.30, 29.79, 75.84°)
OKLaboklab(35.87% 0.0177 0.0636)
OKLCHoklch(35.87% 0.066 74.5)
XYZxyz(4.8391, 4.5138, 1.0318)
Luminance0.0451 (WCAG relative)
Temperaturewarm
Familyorange

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
##51370E1.0011.041.9011.04
#FFFFFF11.041.0021.001.00
#0000001.9021.001.0021.00
##FFFFFF11.041.0021.001.00

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 →

#51370E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva