#631023#631023

#631023 is a dark, moderate red. Relative luminance 0.031; OKLCH L 33.0% C 0.115 H 13.9°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#631023
RGB	rgb(99, 16, 35)
HSL	hsl(346, 72%, 23%)
HSV	hsv(346, 84%, 39%)
CMYK	cmyk(0%, 83.8%, 64.6%, 61.2%)
CIE-LAB	lab(20.62, 37.13, 11.26)
CIE-LCH	lch(20.62, 38.80, 16.86°)
OKLab	oklab(33.03% 0.1117 0.0276)
OKLCH	oklch(33.03% 0.115 13.9)
XYZ	xyz(5.6348, 3.1454, 1.9002)
Luminance	0.0314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631023 #106350

analogous

#63104D #631023 #632610

triadic

#631023 #236310 #102363

tetradic

#631023 #4D6310 #106350 #261063

square

#631023 #4D6310 #106350 #261063

split-complementary

#631023 #106326 #104D63

monochromatic

#1A0409 #2E0710 #631023 #981936 #CC2148

Accessibility & contrast

On white

12.89

#631023 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#631023 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631023

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631023	#FFFFFF	#000000	##FFFFFF
##631023	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282723

Deuteranopia (green-blind)

#3D3821

Tritanopia (blue-blind)

#6D0018

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631023;
/* rgb */ color: rgb(99, 16, 35);
/* oklch */ color: oklch(33.0% 0.115 13.9);

Tailwind

colors: {
  custom: {
    50: '#95585d',
    500: '#631023',
    950: '#000000',
  },
}

SCSS

$custom: #631023;
$custom-light: #95585d;
$custom-dark: #000000;

JSON

{
  "hex": "#631023",
  "rgb": {
    "r": 99,
    "g": 16,
    "b": 35
  },
  "hsl": {
    "h": 346.265,
    "s": 72.174,
    "l": 22.549
  },
  "oklch": {
    "l": 0.33027,
    "c": 0.11501,
    "h": 13.9
  },
  "luminance": 0.03145
}

Semantic roles & 50–950 ramp

primary

#631023

secondary

#339C84

accent

#EFC539

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631023

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

Preview Lab → · Contrast checker → · Palette generator →