#63180E#63180E

#63180E is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.109 H 30.9°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#63180E
RGB	rgb(99, 24, 14)
HSL	hsl(7, 75%, 22%)
HSV	hsv(7, 86%, 39%)
CMYK	cmyk(0%, 75.8%, 85.9%, 61.2%)
CIE-LAB	lab(21.35, 33.01, 25.84)
CIE-LCH	lch(21.35, 41.92, 38.05°)
OKLab	oklab(33.46% 0.0937 0.0561)
OKLCH	oklch(33.46% 0.109 30.9)
XYZ	xyz(5.5521, 3.3385, 0.7674)
Luminance	0.0334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63180E #0E5963

analogous

#630E2F #63180E #63430E

triadic

#63180E #0E6318 #180E63

tetradic

#63180E #2F630E #0E5963 #430E63

square

#63180E #2F630E #0E5963 #430E63

split-complementary

#63180E #0E6343 #0E2F63

monochromatic

#1B0604 #2D0B06 #63180E #992516 #CE321D

Accessibility & contrast

On white

12.59

#63180E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#63180E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63180E

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63180E	#FFFFFF	#000000	##FFFFFF
##63180E	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)

#2E290C

Deuteranopia (green-blind)

#41390A

Tritanopia (blue-blind)

#6E0016

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63180e;
/* rgb */ color: rgb(99, 24, 14);
/* oklch */ color: oklch(33.5% 0.109 30.9);

Tailwind

colors: {
  custom: {
    50: '#975b4d',
    500: '#63180e',
    950: '#000000',
  },
}

SCSS

$custom: #63180e;
$custom-light: #975b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#63180e",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 14
  },
  "hsl": {
    "h": 7.059,
    "s": 75.221,
    "l": 22.157
  },
  "oklch": {
    "l": 0.33464,
    "c": 0.10915,
    "h": 30.9
  },
  "luminance": 0.03338
}

Semantic roles & 50–950 ramp

primary

#63180E

secondary

#30909C

accent

#DCF236

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #63180E

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

Preview Lab → · Contrast checker → · Palette generator →