#851731#851731

#851731 is a dark, vivid red. Relative luminance 0.058; OKLCH L 40.6% C 0.144 H 13.9°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#851731
RGB	rgb(133, 23, 49)
HSL	hsl(346, 71%, 31%)
HSV	hsv(346, 83%, 52%)
CMYK	cmyk(0%, 82.7%, 63.2%, 47.8%)
CIE-LAB	lab(28.96, 46.38, 14.08)
CIE-LCH	lch(28.96, 48.47, 16.89°)
OKLab	oklab(40.59% 0.1394 0.0344)
OKLCH	oklch(40.59% 0.144 13.9)
XYZ	xyz(10.5348, 5.8227, 3.4743)
Luminance	0.0582 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851731 #17856B

analogous

#851768 #851731 #853417

triadic

#851731 #318517 #173185

tetradic

#851731 #688517 #17856B #341785

square

#851731 #688517 #17856B #341785

split-complementary

#851731 #178534 #176885

monochromatic

#1D050B #510E1E #851731 #B92044 #DD3A60

Accessibility & contrast

On white

9.70

#851731 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#851731 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851731

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851731	#FFFFFF	#000000	##FFFFFF
##851731	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373631

Deuteranopia (green-blind)

#534C2E

Tritanopia (blue-blind)

#920022

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #851731;
/* rgb */ color: rgb(133, 23, 49);
/* oklch */ color: oklch(40.6% 0.144 13.9);

Tailwind

colors: {
  custom: {
    50: '#af6168',
    500: '#851731',
    950: '#000000',
  },
}

SCSS

$custom: #851731;
$custom-light: #af6168;
$custom-dark: #000000;

JSON

{
  "hex": "#851731",
  "rgb": {
    "r": 133,
    "g": 23,
    "b": 49
  },
  "hsl": {
    "h": 345.818,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40585,
    "c": 0.14363,
    "h": 13.9
  },
  "luminance": 0.05821
}

Semantic roles & 50–950 ramp

primary

#851731

secondary

#3FB99C

accent

#EDC33B

background

#FBF6F6

surface

#F6EBEB

border

#D0C6C6

text

#120506

muted

#817A7A

Preview Lab

Preview with #851731

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

Preview Lab → · Contrast checker → · Palette generator →