#63180D#63180D

#63180D is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.109 H 31.4°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#63180D
RGB	rgb(99, 24, 13)
HSL	hsl(8, 77%, 22%)
HSV	hsv(8, 87%, 39%)
CMYK	cmyk(0%, 75.8%, 86.9%, 61.2%)
CIE-LAB	lab(21.34, 32.97, 26.32)
CIE-LCH	lch(21.34, 42.19, 38.60°)
OKLab	oklab(33.45% 0.0933 0.0569)
OKLCH	oklch(33.45% 0.109 31.4)
XYZ	xyz(5.5455, 3.3358, 0.7326)
Luminance	0.0333 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63180D #0D5863

analogous

#630D2D #63180D #63430D

triadic

#63180D #0D6318 #180D63

tetradic

#63180D #2D630D #0D5863 #430D63

square

#63180D #2D630D #0D5863 #430D63

split-complementary

#63180D #0D6343 #0D2D63

monochromatic

#1B0704 #2D0B06 #63180D #992514 #CF321B

Accessibility & contrast

On white

12.60

#63180D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#63180D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63180D

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63180D	#FFFFFF	#000000	##FFFFFF
##63180D	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E290B

Deuteranopia (green-blind)

#413909

Tritanopia (blue-blind)

#6E0016

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63180d;
/* rgb */ color: rgb(99, 24, 13);
/* oklch */ color: oklch(33.5% 0.109 31.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#63180d",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 13
  },
  "hsl": {
    "h": 7.674,
    "s": 76.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33453,
    "c": 0.10934,
    "h": 31.4
  },
  "luminance": 0.03335
}

Semantic roles & 50–950 ramp

primary

#63180D

secondary

#2F8F9D

accent

#DBF334

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #63180D

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

Preview Lab → · Contrast checker → · Palette generator →