#64180D#64180D

#64180D is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.6% C 0.110 H 31.3°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#64180D
RGB	rgb(100, 24, 13)
HSL	hsl(8, 77%, 22%)
HSV	hsv(8, 87%, 39%)
CMYK	cmyk(0%, 76%, 87%, 60.8%)
CIE-LAB	lab(21.55, 33.34, 26.61)
CIE-LCH	lch(21.55, 42.65, 38.59°)
OKLab	oklab(33.65% 0.0944 0.0574)
OKLCH	oklch(33.65% 0.11 31.3)
XYZ	xyz(5.6555, 3.3925, 0.7377)
Luminance	0.0339 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64180D #0D5964

analogous

#640D2E #64180D #64440D

triadic

#64180D #0D6418 #180D64

tetradic

#64180D #2E640D #0D5964 #440D64

square

#64180D #2E640D #0D5964 #440D64

split-complementary

#64180D #0D6444 #0D2E64

monochromatic

#1B0604 #2E0B06 #64180D #9A2514 #D0321B

Accessibility & contrast

On white

12.51

#64180D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#64180D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64180D

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64180D	#FFFFFF	#000000	##FFFFFF
##64180D	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F290B

Deuteranopia (green-blind)

#423A09

Tritanopia (blue-blind)

#6F0016

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #64180d;
/* rgb */ color: rgb(100, 24, 13);
/* oklch */ color: oklch(33.6% 0.110 31.3);

Tailwind

colors: {
  custom: {
    50: '#975b4d',
    500: '#64180d',
    950: '#000000',
  },
}

SCSS

$custom: #64180d;
$custom-light: #975b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#64180d",
  "rgb": {
    "r": 100,
    "g": 24,
    "b": 13
  },
  "hsl": {
    "h": 7.586,
    "s": 76.991,
    "l": 22.157
  },
  "oklch": {
    "l": 0.33649,
    "c": 0.11046,
    "h": 31.3
  },
  "luminance": 0.03392
}

Semantic roles & 50–950 ramp

primary

#64180D

secondary

#2F909E

accent

#DBF434

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #64180D

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

Preview Lab → · Contrast checker → · Palette generator →