#631823#631823

#631823 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.107 H 16.8°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#631823
RGB	rgb(99, 24, 35)
HSL	hsl(351, 61%, 24%)
HSV	hsv(351, 76%, 39%)
CMYK	cmyk(0%, 75.8%, 64.6%, 61.2%)
CIE-LAB	lab(21.68, 34.15, 12.67)
CIE-LCH	lch(21.68, 36.43, 20.35°)
OKLab	oklab(33.82% 0.1021 0.0309)
OKLCH	oklch(33.82% 0.107 16.8)
XYZ	xyz(5.7762, 3.4281, 1.9473)
Luminance	0.0343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631823 #186358

analogous

#631849 #631823 #633318

triadic

#631823 #236318 #182363

tetradic

#631823 #496318 #186358 #331863

square

#631823 #496318 #186358 #331863

split-complementary

#631823 #186333 #184963

monochromatic

#190609 #320C12 #631823 #942434 #C63046

Accessibility & contrast

On white

12.46

#631823 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#631823 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631823

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631823	#FFFFFF	#000000	##FFFFFF
##631823	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2A23

Deuteranopia (green-blind)

#3F3A21

Tritanopia (blue-blind)

#6D041D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631823;
/* rgb */ color: rgb(99, 24, 35);
/* oklch */ color: oklch(33.8% 0.107 16.8);

Tailwind

colors: {
  custom: {
    50: '#955b5d',
    500: '#631823',
    950: '#000000',
  },
}

SCSS

$custom: #631823;
$custom-light: #955b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#631823",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 35
  },
  "hsl": {
    "h": 351.2,
    "s": 60.976,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33817,
    "c": 0.10666,
    "h": 16.8
  },
  "luminance": 0.03427
}

Semantic roles & 50–950 ramp

primary

#631823

secondary

#3E998C

accent

#E4CD44

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631823

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

Preview Lab → · Contrast checker → · Palette generator →