#64121B#64121B

#64121B is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.114 H 20.6°. Best body text is #FFFFFF at 12.77:1 contrast (WCAG AA passes).

Color values

HEX	#64121B
RGB	rgb(100, 18, 27)
HSL	hsl(353, 69%, 23%)
HSV	hsv(353, 82%, 39%)
CMYK	cmyk(0%, 82%, 73%, 60.8%)
CIE-LAB	lab(20.91, 36.27, 17.24)
CIE-LCH	lch(20.91, 40.16, 25.42°)
OKLab	oklab(33.23% 0.1069 0.0402)
OKLCH	oklch(33.23% 0.114 20.6)
XYZ	xyz(5.6703, 3.2219, 1.3600)
Luminance	0.0322 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64121B #12645B

analogous

#641244 #64121B #643212

triadic

#64121B #1B6412 #121B64

tetradic

#64121B #446412 #12645B #321264

square

#64121B #446412 #12645B #321264

split-complementary

#64121B #126432 #124464

monochromatic

#1A0507 #30090D #64121B #981B29 #CC2537

Accessibility & contrast

On white

12.77

#64121B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#64121B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64121B

12.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64121B	#FFFFFF	#000000	##FFFFFF
##64121B	1.00	12.77	1.64	12.77
#FFFFFF	12.77	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271B

Deuteranopia (green-blind)

#3F3918

Tritanopia (blue-blind)

#6F0016

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #64121b;
/* rgb */ color: rgb(100, 18, 27);
/* oklch */ color: oklch(33.2% 0.114 20.6);

Tailwind

colors: {
  custom: {
    50: '#975857',
    500: '#64121b',
    950: '#000000',
  },
}

SCSS

$custom: #64121b;
$custom-light: #975857;
$custom-dark: #000000;

JSON

{
  "hex": "#64121b",
  "rgb": {
    "r": 100,
    "g": 18,
    "b": 27
  },
  "hsl": {
    "h": 353.415,
    "s": 69.492,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33232,
    "c": 0.11421,
    "h": 20.6
  },
  "luminance": 0.03221
}

Semantic roles & 50–950 ramp

primary

#64121B

secondary

#369C91

accent

#ECD93B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #64121B

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

Preview Lab → · Contrast checker → · Palette generator →