#64221B#64221B

#64221B is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.1% C 0.097 H 29.0°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#64221B
RGB	rgb(100, 34, 27)
HSL	hsl(6, 57%, 25%)
HSV	hsv(6, 73%, 39%)
CMYK	cmyk(0%, 66%, 73%, 60.8%)
CIE-LAB	lab(23.45, 29.33, 20.30)
CIE-LCH	lch(23.45, 35.67, 34.69°)
OKLab	oklab(35.13% 0.0849 0.047)
OKLCH	oklch(35.13% 0.097 29)
XYZ	xyz(6.0260, 3.9333, 1.4786)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64221B #1B5D64

analogous

#641B39 #64221B #64461B

triadic

#64221B #1B6422 #221B64

tetradic

#64221B #39641B #1B5D64 #461B64

square

#64221B #39641B #1B5D64 #461B64

split-complementary

#64221B #1B6446 #1B3964

monochromatic

#180807 #34120E #64221B #943228 #C44335

Accessibility & contrast

On white

11.75

#64221B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#64221B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64221B

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64221B	#FFFFFF	#000000	##FFFFFF
##64221B	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1A

Deuteranopia (green-blind)

#443D19

Tritanopia (blue-blind)

#6E1321

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #64221b;
/* rgb */ color: rgb(100, 34, 27);
/* oklch */ color: oklch(35.1% 0.097 29.0);

Tailwind

colors: {
  custom: {
    50: '#966057',
    500: '#64221b',
    950: '#000000',
  },
}

SCSS

$custom: #64221b;
$custom-light: #966057;
$custom-dark: #000000;

JSON

{
  "hex": "#64221b",
  "rgb": {
    "r": 100,
    "g": 34,
    "b": 27
  },
  "hsl": {
    "h": 5.753,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35129,
    "c": 0.09708,
    "h": 29
  },
  "luminance": 0.03933
}

Semantic roles & 50–950 ramp

primary

#64221B

secondary

#419199

accent

#D2E147

background

#F9F5F5

surface

#F2EAE9

border

#CCC6C5

text

#0E0503

muted

#7E7978

Preview Lab

Preview with #64221B

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

Preview Lab → · Contrast checker → · Palette generator →