#641B25#641B25

#641B25 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.104 H 16.8°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#641B25
RGB	rgb(100, 27, 37)
HSL	hsl(352, 57%, 25%)
HSV	hsv(352, 73%, 39%)
CMYK	cmyk(0%, 73%, 63%, 60.8%)
CIE-LAB	lab(22.40, 33.37, 12.27)
CIE-LCH	lch(22.40, 35.56, 20.20°)
OKLab	oklab(34.4% 0.0998 0.0301)
OKLCH	oklch(34.4% 0.104 16.8)
XYZ	xyz(5.9820, 3.6276, 2.1351)
Luminance	0.0363 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B25 #1B645A

analogous

#641B49 #641B25 #64361B

triadic

#641B25 #25641B #1B2564

tetradic

#641B25 #49641B #1B645A #361B64

square

#641B25 #49641B #1B645A #361B64

split-complementary

#641B25 #1B6436 #1B4964

monochromatic

#180709 #340E13 #641B25 #942837 #C43549

Accessibility & contrast

On white

12.17

#641B25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#641B25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B25

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B25	#FFFFFF	#000000	##FFFFFF
##641B25	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2C25

Deuteranopia (green-blind)

#403B23

Tritanopia (blue-blind)

#6E0A1F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641b25;
/* rgb */ color: rgb(100, 27, 37);
/* oklch */ color: oklch(34.4% 0.104 16.8);

Tailwind

colors: {
  custom: {
    50: '#955d5f',
    500: '#641b25',
    950: '#000000',
  },
}

SCSS

$custom: #641b25;
$custom-light: #955d5f;
$custom-dark: #000000;

JSON

{
  "hex": "#641b25",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 37
  },
  "hsl": {
    "h": 351.781,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34403,
    "c": 0.10428,
    "h": 16.8
  },
  "luminance": 0.03627
}

Semantic roles & 50–950 ramp

primary

#641B25

secondary

#41998D

accent

#E1CC47

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #641B25

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

Preview Lab → · Contrast checker → · Palette generator →