#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
RGBrgb(99, 16, 35)
HSLhsl(346, 72%, 23%)
HSVhsv(346, 84%, 39%)
CMYKcmyk(0%, 83.8%, 64.6%, 61.2%)
CIE-LABlab(20.62, 37.13, 11.26)
CIE-LCHlch(20.62, 38.80, 16.86°)
OKLaboklab(33.03% 0.1117 0.0276)
OKLCHoklch(33.03% 0.115 13.9)
XYZxyz(5.6348, 3.1454, 1.9002)
Luminance0.0314 (WCAG relative)
Temperaturewarm
Familyred

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
##6310231.0012.891.6312.89
#FFFFFF12.891.0021.001.00
#0000001.6321.001.0021.00
##FFFFFF12.891.0021.001.00

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 →

#631023 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva