#63180F#63180F

#63180F is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.109 H 30.4°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#63180F
RGB	rgb(99, 24, 15)
HSL	hsl(6, 74%, 22%)
HSV	hsv(6, 85%, 39%)
CMYK	cmyk(0%, 75.8%, 84.8%, 61.2%)
CIE-LAB	lab(21.36, 33.04, 25.33)
CIE-LCH	lch(21.36, 41.63, 37.47°)
OKLab	oklab(33.48% 0.094 0.0552)
OKLCH	oklch(33.48% 0.109 30.4)
XYZ	xyz(5.5591, 3.3413, 0.8041)
Luminance	0.0334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63180F #0F5A63

analogous

#630F30 #63180F #63420F

triadic

#63180F #0F6318 #180F63

tetradic

#63180F #30630F #0F5A63 #420F63

square

#63180F #30630F #0F5A63 #420F63

split-complementary

#63180F #0F6342 #0F3063

monochromatic

#1B0604 #2E0B07 #63180F #982517 #CD321F

Accessibility & contrast

On white

12.59

#63180F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#63180F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63180F

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63180F	#FFFFFF	#000000	##FFFFFF
##63180F	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E290D

Deuteranopia (green-blind)

#41390C

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63180f;
/* rgb */ color: rgb(99, 24, 15);
/* oklch */ color: oklch(33.5% 0.109 30.4);

Tailwind

colors: {
  custom: {
    50: '#975b4e',
    500: '#63180f',
    950: '#000000',
  },
}

SCSS

$custom: #63180f;
$custom-light: #975b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#63180f",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 15
  },
  "hsl": {
    "h": 6.429,
    "s": 73.684,
    "l": 22.353
  },
  "oklch": {
    "l": 0.33475,
    "c": 0.10897,
    "h": 30.4
  },
  "luminance": 0.0334
}

Semantic roles & 50–950 ramp

primary

#63180F

secondary

#32919C

accent

#DDF037

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #63180F

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

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