#640F24#640F24

#640F24 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.117 H 13.1°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#640F24
RGB	rgb(100, 15, 36)
HSL	hsl(345, 74%, 23%)
HSV	hsv(345, 85%, 39%)
CMYK	cmyk(0%, 85%, 64%, 60.8%)
CIE-LAB	lab(20.75, 37.83, 10.77)
CIE-LCH	lch(20.75, 39.34, 15.88°)
OKLab	oklab(33.17% 0.114 0.0265)
OKLCH	oklch(33.17% 0.117 13.1)
XYZ	xyz(5.7454, 3.1792, 1.9798)
Luminance	0.0318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#640F24 #0F644F

analogous

#640F4F #640F24 #64240F

triadic

#640F24 #24640F #0F2464

tetradic

#640F24 #4F640F #0F644F #240F64

square

#640F24 #4F640F #0F644F #240F64

split-complementary

#640F24 #0F6424 #0F4F64

monochromatic

#1B040A #2F0711 #640F24 #991737 #CE1F4A

Accessibility & contrast

On white

12.84

#640F24 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#640F24 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #640F24

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##640F24	#FFFFFF	#000000	##FFFFFF
##640F24	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282724

Deuteranopia (green-blind)

#3D3822

Tritanopia (blue-blind)

#6E0018

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #640f24;
/* rgb */ color: rgb(100, 15, 36);
/* oklch */ color: oklch(33.2% 0.117 13.1);

Tailwind

colors: {
  custom: {
    50: '#96585e',
    500: '#640f24',
    950: '#000000',
  },
}

SCSS

$custom: #640f24;
$custom-light: #96585e;
$custom-dark: #000000;

JSON

{
  "hex": "#640f24",
  "rgb": {
    "r": 100,
    "g": 15,
    "b": 36
  },
  "hsl": {
    "h": 345.176,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.3317,
    "c": 0.11702,
    "h": 13.1
  },
  "luminance": 0.03178
}

Semantic roles & 50–950 ramp

primary

#640F24

secondary

#329D82

accent

#F1C337

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #640F24

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

Preview Lab → · Contrast checker → · Palette generator →