#641B26#641B26

#641B26 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.104 H 15.9°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#641B26
RGB	rgb(100, 27, 38)
HSL	hsl(351, 57%, 25%)
HSV	hsv(351, 73%, 39%)
CMYK	cmyk(0%, 73%, 62%, 60.8%)
CIE-LAB	lab(22.42, 33.45, 11.62)
CIE-LCH	lch(22.42, 35.41, 19.15°)
OKLab	oklab(34.43% 0.1003 0.0286)
OKLCH	oklch(34.43% 0.104 15.9)
XYZ	xyz(5.9979, 3.6340, 2.2189)
Luminance	0.0363 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B26 #1B6459

analogous

#641B4A #641B26 #64351B

triadic

#641B26 #26641B #1B2664

tetradic

#641B26 #4A641B #1B6459 #351B64

square

#641B26 #4A641B #1B6459 #351B64

split-complementary

#641B26 #1B6435 #1B4A64

monochromatic

#180709 #340E14 #641B26 #942838 #C4354B

Accessibility & contrast

On white

12.16

#641B26 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#641B26 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B26

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B26	#FFFFFF	#000000	##FFFFFF
##641B26	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2C26

Deuteranopia (green-blind)

#403B24

Tritanopia (blue-blind)

#6E0A20

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641b26;
/* rgb */ color: rgb(100, 27, 38);
/* oklch */ color: oklch(34.4% 0.104 15.9);

Tailwind

colors: {
  custom: {
    50: '#955d60',
    500: '#641b26',
    950: '#000000',
  },
}

SCSS

$custom: #641b26;
$custom-light: #955d60;
$custom-dark: #000000;

JSON

{
  "hex": "#641b26",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 38
  },
  "hsl": {
    "h": 350.959,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34427,
    "c": 0.10429,
    "h": 15.9
  },
  "luminance": 0.03633
}

Semantic roles & 50–950 ramp

primary

#641B26

secondary

#41998C

accent

#E1CA47

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #641B26

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

Preview Lab → · Contrast checker → · Palette generator →