#641F0F#641F0F

#641F0F is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.103 H 34.4°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#641F0F
RGB	rgb(100, 31, 15)
HSL	hsl(11, 74%, 23%)
HSV	hsv(11, 85%, 39%)
CMYK	cmyk(0%, 69%, 85%, 60.8%)
CIE-LAB	lab(22.74, 30.24, 26.85)
CIE-LCH	lch(22.74, 40.44, 41.61°)
OKLab	oklab(34.55% 0.0851 0.0582)
OKLCH	oklch(34.55% 0.103 34.4)
XYZ	xyz(5.8324, 3.7246, 0.8637)
Luminance	0.0372 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641F0F #0F5464

analogous

#640F2A #641F0F #64490F

triadic

#641F0F #0F641F #1F0F64

tetradic

#641F0F #2A640F #0F5464 #490F64

square

#641F0F #2A640F #0F5464 #490F64

split-complementary

#641F0F #0F6449 #0F2A64

monochromatic

#1B0804 #2F0F07 #641F0F #992F17 #CE401F

Accessibility & contrast

On white

12.04

#641F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#641F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641F0F

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641F0F	#FFFFFF	#000000	##FFFFFF
##641F0F	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332D0D

Deuteranopia (green-blind)

#443C0C

Tritanopia (blue-blind)

#6F0B1C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641f0f;
/* rgb */ color: rgb(100, 31, 15);
/* oklch */ color: oklch(34.5% 0.103 34.4);

Tailwind

colors: {
  custom: {
    50: '#975e4e',
    500: '#641f0f',
    950: '#000000',
  },
}

SCSS

$custom: #641f0f;
$custom-light: #975e4e;
$custom-dark: #000000;

JSON

{
  "hex": "#641f0f",
  "rgb": {
    "r": 100,
    "g": 31,
    "b": 15
  },
  "hsl": {
    "h": 11.294,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34546,
    "c": 0.10314,
    "h": 34.4
  },
  "luminance": 0.03724
}

Semantic roles & 50–950 ramp

primary

#641F0F

secondary

#32899D

accent

#CEF137

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0502

muted

#7F7978

Preview Lab

Preview with #641F0F

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

Preview Lab → · Contrast checker → · Palette generator →