#641C23#641C23

#641C23 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.103 H 18.9°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#641C23
RGB	rgb(100, 28, 35)
HSL	hsl(354, 56%, 25%)
HSV	hsv(354, 72%, 39%)
CMYK	cmyk(0%, 72%, 65%, 60.8%)
CIE-LAB	lab(22.52, 32.77, 13.80)
CIE-LCH	lch(22.52, 35.56, 22.84°)
OKLab	oklab(34.48% 0.0975 0.0335)
OKLCH	oklch(34.48% 0.103 18.9)
XYZ	xyz(5.9747, 3.6620, 1.9820)
Luminance	0.0366 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C23 #1C645D

analogous

#641C47 #641C23 #64391C

triadic

#641C23 #23641C #1C2364

tetradic

#641C23 #47641C #1C645D #391C64

square

#641C23 #47641C #1C645D #391C64

split-complementary

#641C23 #1C6439 #1C4764

monochromatic

#180708 #340F12 #641C23 #942934 #C43744

Accessibility & contrast

On white

12.12

#641C23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#641C23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C23

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C23	#FFFFFF	#000000	##FFFFFF
##641C23	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2C23

Deuteranopia (green-blind)

#413B21

Tritanopia (blue-blind)

#6E0B1F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641c23;
/* rgb */ color: rgb(100, 28, 35);
/* oklch */ color: oklch(34.5% 0.103 18.9);

Tailwind

colors: {
  custom: {
    50: '#955d5d',
    500: '#641c23',
    950: '#000000',
  },
}

SCSS

$custom: #641c23;
$custom-light: #955d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#641c23",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 35
  },
  "hsl": {
    "h": 354.167,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34479,
    "c": 0.10311,
    "h": 18.9
  },
  "luminance": 0.03661
}

Semantic roles & 50–950 ramp

primary

#641C23

secondary

#439991

accent

#E0D148

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #641C23

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

Preview Lab → · Contrast checker → · Palette generator →