#631123#631123

#631123 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.1% C 0.114 H 14.2°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#631123
RGB	rgb(99, 17, 35)
HSL	hsl(347, 71%, 23%)
HSV	hsv(347, 83%, 39%)
CMYK	cmyk(0%, 82.8%, 64.6%, 61.2%)
CIE-LAB	lab(20.73, 36.80, 11.41)
CIE-LCH	lch(20.73, 38.53, 17.23°)
OKLab	oklab(33.11% 0.1106 0.028)
OKLCH	oklch(33.11% 0.114 14.2)
XYZ	xyz(5.6500, 3.1757, 1.9053)
Luminance	0.0318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631123 #116351

analogous

#63114C #631123 #632811

triadic

#631123 #236311 #112363

tetradic

#631123 #4C6311 #116351 #281163

square

#631123 #4C6311 #116351 #281163

split-complementary

#631123 #116328 #114C63

monochromatic

#1A0409 #2F0811 #631123 #971A35 #CB2348

Accessibility & contrast

On white

12.84

#631123 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#631123 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631123

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631123	#FFFFFF	#000000	##FFFFFF
##631123	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)

#282723

Deuteranopia (green-blind)

#3D3821

Tritanopia (blue-blind)

#6D0019

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631123;
/* rgb */ color: rgb(99, 17, 35);
/* oklch */ color: oklch(33.1% 0.114 14.2);

Tailwind

colors: {
  custom: {
    50: '#95585d',
    500: '#631123',
    950: '#000000',
  },
}

SCSS

$custom: #631123;
$custom-light: #95585d;
$custom-dark: #000000;

JSON

{
  "hex": "#631123",
  "rgb": {
    "r": 99,
    "g": 17,
    "b": 35
  },
  "hsl": {
    "h": 346.829,
    "s": 70.69,
    "l": 22.745
  },
  "oklch": {
    "l": 0.33114,
    "c": 0.11406,
    "h": 14.2
  },
  "luminance": 0.03175
}

Semantic roles & 50–950 ramp

primary

#631123

secondary

#349B85

accent

#EDC63A

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631123

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

Preview Lab → · Contrast checker → · Palette generator →