#631418#631418

#631418 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.111 H 23.3°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#631418
RGB	rgb(99, 20, 24)
HSL	hsl(357, 66%, 23%)
HSV	hsv(357, 80%, 39%)
CMYK	cmyk(0%, 79.8%, 75.8%, 61.2%)
CIE-LAB	lab(20.90, 35.04, 19.21)
CIE-LCH	lch(20.90, 39.96, 28.73°)
OKLab	oklab(33.17% 0.1024 0.0441)
OKLCH	oklch(33.17% 0.111 23.3)
XYZ	xyz(5.5612, 3.2198, 1.1926)
Luminance	0.0322 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631418 #14635F

analogous

#63143F #631418 #633714

triadic

#631418 #186314 #141863

tetradic

#631418 #3F6314 #14635F #371463

square

#631418 #3F6314 #14635F #371463

split-complementary

#631418 #146337 #143F63

monochromatic

#190506 #300A0C #631418 #961E24 #C92931

Accessibility & contrast

On white

12.78

#631418 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#631418 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631418

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631418	#FFFFFF	#000000	##FFFFFF
##631418	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2717

Deuteranopia (green-blind)

#3F3815

Tritanopia (blue-blind)

#6E0016

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631418;
/* rgb */ color: rgb(99, 20, 24);
/* oklch */ color: oklch(33.2% 0.111 23.3);

Tailwind

colors: {
  custom: {
    50: '#965954',
    500: '#631418',
    950: '#000000',
  },
}

SCSS

$custom: #631418;
$custom-light: #965954;
$custom-dark: #000000;

JSON

{
  "hex": "#631418",
  "rgb": {
    "r": 99,
    "g": 20,
    "b": 24
  },
  "hsl": {
    "h": 356.962,
    "s": 66.387,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33171,
    "c": 0.11148,
    "h": 23.3
  },
  "luminance": 0.03219
}

Semantic roles & 50–950 ramp

primary

#631418

secondary

#389A95

accent

#E9E13E

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631418

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

Preview Lab → · Contrast checker → · Palette generator →