#631319#631319

#631319 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.1% C 0.112 H 22.2°. Best body text is #FFFFFF at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#631319
RGB	rgb(99, 19, 25)
HSL	hsl(356, 68%, 23%)
HSV	hsv(356, 81%, 39%)
CMYK	cmyk(0%, 80.8%, 74.7%, 61.2%)
CIE-LAB	lab(20.79, 35.47, 18.40)
CIE-LCH	lch(20.79, 39.95, 27.41°)
OKLab	oklab(33.09% 0.104 0.0425)
OKLCH	oklch(33.09% 0.112 22.2)
XYZ	xyz(5.5546, 3.1894, 1.2427)
Luminance	0.0319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631319 #13635D

analogous

#631341 #631319 #633513

triadic

#631319 #196313 #131963

tetradic

#631319 #416313 #13635D #351363

square

#631319 #416313 #13635D #351363

split-complementary

#631319 #136335 #134163

monochromatic

#1A0506 #30090C #631319 #961D26 #CA2733

Accessibility & contrast

On white

12.82

#631319 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#631319 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631319

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631319	#FFFFFF	#000000	##FFFFFF
##631319	1.00	12.82	1.64	12.82
#FFFFFF	12.82	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2719

Deuteranopia (green-blind)

#3F3816

Tritanopia (blue-blind)

#6D0016

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631319;
/* rgb */ color: rgb(99, 19, 25);
/* oklch */ color: oklch(33.1% 0.112 22.2);

Tailwind

colors: {
  custom: {
    50: '#965955',
    500: '#631319',
    950: '#000000',
  },
}

SCSS

$custom: #631319;
$custom-light: #965955;
$custom-dark: #000000;

JSON

{
  "hex": "#631319",
  "rgb": {
    "r": 99,
    "g": 19,
    "b": 25
  },
  "hsl": {
    "h": 355.5,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33089,
    "c": 0.11233,
    "h": 22.2
  },
  "luminance": 0.03189
}

Semantic roles & 50–950 ramp

primary

#631319

secondary

#379B93

accent

#EBDE3D

background

#F9F5F4

surface

#F2E9E8

border

#CCC5C4

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #631319

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

Preview Lab → · Contrast checker → · Palette generator →