#64171D#64171D

#64171D is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.109 H 21.2°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#64171D
RGB	rgb(100, 23, 29)
HSL	hsl(355, 63%, 24%)
HSV	hsv(355, 77%, 39%)
CMYK	cmyk(0%, 77%, 71%, 60.8%)
CIE-LAB	lab(21.62, 34.51, 16.75)
CIE-LCH	lch(21.62, 38.36, 25.89°)
OKLab	oklab(33.77% 0.1017 0.0395)
OKLCH	oklch(33.77% 0.109 21.2)
XYZ	xyz(5.7843, 3.4117, 1.5161)
Luminance	0.0341 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64171D #17645E

analogous

#641744 #64171D #643817

triadic

#64171D #1D6417 #171D64

tetradic

#64171D #446417 #17645E #381764

square

#64171D #446417 #17645E #381764

split-complementary

#64171D #176438 #174464

monochromatic

#190607 #320C0F #64171D #96222B #C82E3A

Accessibility & contrast

On white

12.48

#64171D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#64171D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64171D

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64171D	#FFFFFF	#000000	##FFFFFF
##64171D	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D291D

Deuteranopia (green-blind)

#403A1B

Tritanopia (blue-blind)

#6E001A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #64171d;
/* rgb */ color: rgb(100, 23, 29);
/* oklch */ color: oklch(33.8% 0.109 21.2);

Tailwind

colors: {
  custom: {
    50: '#965b58',
    500: '#64171d',
    950: '#000000',
  },
}

SCSS

$custom: #64171d;
$custom-light: #965b58;
$custom-dark: #000000;

JSON

{
  "hex": "#64171d",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 29
  },
  "hsl": {
    "h": 355.325,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33772,
    "c": 0.10912,
    "h": 21.2
  },
  "luminance": 0.03411
}

Semantic roles & 50–950 ramp

primary

#64171D

secondary

#3C9A93

accent

#E6D942

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #64171D

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

Preview Lab → · Contrast checker → · Palette generator →