#641C0F#641C0F

#641C0F is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.2% C 0.106 H 32.5°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#641C0F
RGB	rgb(100, 28, 15)
HSL	hsl(9, 74%, 23%)
HSV	hsv(9, 85%, 39%)
CMYK	cmyk(0%, 72%, 85%, 60.8%)
CIE-LAB	lab(22.21, 31.65, 26.30)
CIE-LCH	lch(22.21, 41.16, 39.73°)
OKLab	oklab(34.15% 0.0895 0.0571)
OKLCH	oklch(34.15% 0.106 32.5)
XYZ	xyz(5.7577, 3.5752, 0.8388)
Luminance	0.0357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C0F #0F5764

analogous

#640F2D #641C0F #64460F

triadic

#641C0F #0F641C #1C0F64

tetradic

#641C0F #2D640F #0F5764 #460F64

square

#641C0F #2D640F #0F5764 #460F64

split-complementary

#641C0F #0F6446 #0F2D64

monochromatic

#1B0704 #2F0D07 #641C0F #992B17 #CE3A1F

Accessibility & contrast

On white

12.25

#641C0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#641C0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C0F

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C0F	#FFFFFF	#000000	##FFFFFF
##641C0F	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312B0D

Deuteranopia (green-blind)

#433B0C

Tritanopia (blue-blind)

#6F051A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641c0f;
/* rgb */ color: rgb(100, 28, 15);
/* oklch */ color: oklch(34.2% 0.106 32.5);

Tailwind

colors: {
  custom: {
    50: '#975d4e',
    500: '#641c0f',
    950: '#000000',
  },
}

SCSS

$custom: #641c0f;
$custom-light: #975d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#641c0f",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 15
  },
  "hsl": {
    "h": 9.176,
    "s": 73.913,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34151,
    "c": 0.10617,
    "h": 32.5
  },
  "luminance": 0.03574
}

Semantic roles & 50–950 ramp

primary

#641C0F

secondary

#328D9D

accent

#D4F137

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #641C0F

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

Preview Lab → · Contrast checker → · Palette generator →