#851F17#851F17

#851F17 is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.8% C 0.139 H 29.1°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#851F17
RGB	rgb(133, 31, 23)
HSL	hsl(4, 71%, 31%)
HSV	hsv(4, 83%, 52%)
CMYK	cmyk(0%, 76.7%, 82.7%, 47.8%)
CIE-LAB	lab(29.49, 42.45, 31.23)
CIE-LCH	lch(29.49, 52.70, 36.34°)
OKLab	oklab(40.85% 0.1211 0.0674)
OKLCH	oklch(40.85% 0.139 29.1)
XYZ	xyz(10.3187, 6.0300, 1.4310)
Luminance	0.0603 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851F17 #177D85

analogous

#851746 #851F17 #855617

triadic

#851F17 #17851F #1F1785

tetradic

#851F17 #468517 #177D85 #561785

square

#851F17 #468517 #177D85 #561785

split-complementary

#851F17 #178556 #174685

monochromatic

#1D0705 #51130E #851F17 #B92B20 #DD453A

Accessibility & contrast

On white

9.52

#851F17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#851F17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851F17

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851F17	#FFFFFF	#000000	##FFFFFF
##851F17	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3715

Deuteranopia (green-blind)

#574E12

Tritanopia (blue-blind)

#93001E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #851f17;
/* rgb */ color: rgb(133, 31, 23);
/* oklch */ color: oklch(40.8% 0.139 29.1);

Tailwind

colors: {
  custom: {
    50: '#b16355',
    500: '#851f17',
    950: '#000000',
  },
}

SCSS

$custom: #851f17;
$custom-light: #b16355;
$custom-dark: #000000;

JSON

{
  "hex": "#851f17",
  "rgb": {
    "r": 133,
    "g": 31,
    "b": 23
  },
  "hsl": {
    "h": 4.364,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40846,
    "c": 0.13855,
    "h": 29.1
  },
  "luminance": 0.06028
}

Semantic roles & 50–950 ramp

primary

#851F17

secondary

#3FB0B9

accent

#E0ED3B

background

#FBF6F5

surface

#F7EBE8

border

#D0C6C4

text

#120603

muted

#817A78

Preview Lab

Preview with #851F17

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

Preview Lab → · Contrast checker → · Palette generator →