#631316#631316

#631316 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.0% C 0.113 H 24.2°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#631316
RGB	rgb(99, 19, 22)
HSL	hsl(358, 68%, 23%)
HSV	hsv(358, 81%, 39%)
CMYK	cmyk(0%, 80.8%, 77.8%, 61.2%)
CIE-LAB	lab(20.74, 35.31, 20.36)
CIE-LCH	lch(20.74, 40.76, 29.96°)
OKLab	oklab(33.04% 0.1028 0.0461)
OKLCH	oklch(33.04% 0.113 24.2)
XYZ	xyz(5.5239, 3.1772, 1.0813)
Luminance	0.0318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631316 #136360

analogous

#63133E #631316 #633813

triadic

#631316 #166313 #131663

tetradic

#631316 #3E6313 #136360 #381363

square

#631316 #3E6313 #136360 #381363

split-complementary

#631316 #136338 #133E63

monochromatic

#1A0506 #30090B #631316 #961D21 #CA272D

Accessibility & contrast

On white

12.84

#631316 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#631316 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631316

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631316	#FFFFFF	#000000	##FFFFFF
##631316	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)

#2B2715

Deuteranopia (green-blind)

#3F3813

Tritanopia (blue-blind)

#6E0015

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631316;
/* rgb */ color: rgb(99, 19, 22);
/* oklch */ color: oklch(33.0% 0.113 24.2);

Tailwind

colors: {
  custom: {
    50: '#965953',
    500: '#631316',
    950: '#000000',
  },
}

SCSS

$custom: #631316;
$custom-light: #965953;
$custom-dark: #000000;

JSON

{
  "hex": "#631316",
  "rgb": {
    "r": 99,
    "g": 19,
    "b": 22
  },
  "hsl": {
    "h": 357.75,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33039,
    "c": 0.11264,
    "h": 24.2
  },
  "luminance": 0.03176
}

Semantic roles & 50–950 ramp

primary

#631316

secondary

#379B97

accent

#EBE43D

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631316

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

Preview Lab → · Contrast checker → · Palette generator →