#51371B#51371B

#51371B is a dark, muted orange. Relative luminance 0.046; OKLCH L 36.0% C 0.056 H 66.4°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#51371B
RGB	rgb(81, 55, 27)
HSL	hsl(31, 50%, 21%)
HSV	hsv(31, 67%, 32%)
CMYK	cmyk(0%, 32.1%, 66.7%, 68.2%)
CIE-LAB	lab(25.45, 8.17, 21.91)
CIE-LCH	lch(25.45, 23.38, 69.55°)
OKLab	oklab(36.03% 0.0224 0.0512)
OKLCH	oklch(36.03% 0.056 66.4)
XYZ	xyz(4.9577, 4.5612, 1.6560)
Luminance	0.0456 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51371B #1B3551

analogous

#511C1B #51371B #50511B

triadic

#51371B #1B5137 #371B51

tetradic

#51371B #1B511C #1B3551 #511B50

square

#51371B #1B511C #1B3551 #511B50

split-complementary

#51371B #1B5051 #1C1B51

monochromatic

#171008 #23180C #51371B #7F562A #AD753A

Accessibility & contrast

On white

10.98

#51371B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#51371B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51371B

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51371B	#FFFFFF	#000000	##FFFFFF
##51371B	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403918

Deuteranopia (green-blind)

#463F1C

Tritanopia (blue-blind)

#583131

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #51371b;
/* rgb */ color: rgb(81, 55, 27);
/* oklch */ color: oklch(36.0% 0.056 66.4);

Tailwind

colors: {
  custom: {
    50: '#846d58',
    500: '#51371b',
    950: '#000000',
  },
}

SCSS

$custom: #51371b;
$custom-light: #846d58;
$custom-dark: #000000;

JSON

{
  "hex": "#51371b",
  "rgb": {
    "r": 81,
    "g": 55,
    "b": 27
  },
  "hsl": {
    "h": 31.111,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.36031,
    "c": 0.05591,
    "h": 66.4
  },
  "luminance": 0.04561
}

Semantic roles & 50–950 ramp

primary

#51371B

secondary

#416387

accent

#91DA4E

background

#F8F6F5

surface

#EFEBE9

border

#CAC6C5

text

#0B0703

muted

#7C7A78

Preview Lab

Preview with #51371B

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

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