#64171F#64171F

#64171F is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.109 H 19.7°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#64171F
RGB	rgb(100, 23, 31)
HSL	hsl(354, 63%, 24%)
HSV	hsv(354, 77%, 39%)
CMYK	cmyk(0%, 77%, 69%, 60.8%)
CIE-LAB	lab(21.66, 34.63, 15.43)
CIE-LCH	lch(21.66, 37.92, 24.02°)
OKLab	oklab(33.81% 0.1026 0.0368)
OKLCH	oklch(33.81% 0.109 19.7)
XYZ	xyz(5.8099, 3.4219, 1.6506)
Luminance	0.0342 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64171F #17645C

analogous

#641746 #64171F #643617

triadic

#64171F #1F6417 #171F64

tetradic

#64171F #466417 #17645C #361764

square

#64171F #466417 #17645C #361764

split-complementary

#64171F #176436 #174664

monochromatic

#190608 #320C10 #64171F #96222E #C82E3E

Accessibility & contrast

On white

12.47

#64171F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#64171F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64171F

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64171F	#FFFFFF	#000000	##FFFFFF
##64171F	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2A1F

Deuteranopia (green-blind)

#403A1D

Tritanopia (blue-blind)

#6E001B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #64171f;
/* rgb */ color: rgb(100, 23, 31);
/* oklch */ color: oklch(33.8% 0.109 19.7);

Tailwind

colors: {
  custom: {
    50: '#965b5a',
    500: '#64171f',
    950: '#000000',
  },
}

SCSS

$custom: #64171f;
$custom-light: #965b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#64171f",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 31
  },
  "hsl": {
    "h": 353.766,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33812,
    "c": 0.10899,
    "h": 19.7
  },
  "luminance": 0.03421
}

Semantic roles & 50–950 ramp

primary

#64171F

secondary

#3C9A91

accent

#E6D542

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #64171F

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

Preview Lab → · Contrast checker → · Palette generator →