#631317#631317

#631317 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.1% C 0.113 H 23.5°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#631317
RGB	rgb(99, 19, 23)
HSL	hsl(357, 68%, 23%)
HSV	hsv(357, 81%, 39%)
CMYK	cmyk(0%, 80.8%, 76.8%, 61.2%)
CIE-LAB	lab(20.76, 35.36, 19.71)
CIE-LCH	lch(20.76, 40.48, 29.13°)
OKLab	oklab(33.06% 0.1032 0.0449)
OKLCH	oklch(33.06% 0.113 23.5)
XYZ	xyz(5.5338, 3.1811, 1.1331)
Luminance	0.0318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631317 #13635F

analogous

#63133F #631317 #633713

triadic

#631317 #176313 #131763

tetradic

#631317 #3F6313 #13635F #371363

square

#631317 #3F6313 #13635F #371363

split-complementary

#631317 #136337 #133F63

monochromatic

#1A0506 #30090B #631317 #961D23 #CA272F

Accessibility & contrast

On white

12.84

#631317 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#631317 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631317

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631317	#FFFFFF	#000000	##FFFFFF
##631317	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2716

Deuteranopia (green-blind)

#3F3814

Tritanopia (blue-blind)

#6E0015

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631317;
/* rgb */ color: rgb(99, 19, 23);
/* oklch */ color: oklch(33.1% 0.113 23.5);

Tailwind

colors: {
  custom: {
    50: '#965954',
    500: '#631317',
    950: '#000000',
  },
}

SCSS

$custom: #631317;
$custom-light: #965954;
$custom-dark: #000000;

JSON

{
  "hex": "#631317",
  "rgb": {
    "r": 99,
    "g": 19,
    "b": 23
  },
  "hsl": {
    "h": 357,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33055,
    "c": 0.11253,
    "h": 23.5
  },
  "luminance": 0.0318
}

Semantic roles & 50–950 ramp

primary

#631317

secondary

#379B96

accent

#EBE23D

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631317

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

Preview Lab → · Contrast checker → · Palette generator →