#641C1E#641C1E

#641C1E is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.103 H 22.9°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#641C1E
RGB	rgb(100, 28, 30)
HSL	hsl(358, 56%, 25%)
HSV	hsv(358, 72%, 39%)
CMYK	cmyk(0%, 72%, 70%, 60.8%)
CIE-LAB	lab(22.42, 32.42, 17.07)
CIE-LCH	lch(22.42, 36.64, 27.77°)
OKLab	oklab(34.38% 0.0953 0.0403)
OKLCH	oklch(34.38% 0.104 22.9)
XYZ	xyz(5.9057, 3.6344, 1.6186)
Luminance	0.0363 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C1E #1C6462

analogous

#641C42 #641C1E #643E1C

triadic

#641C1E #1E641C #1C1E64

tetradic

#641C1E #42641C #1C6462 #3E1C64

square

#641C1E #42641C #1C6462 #3E1C64

split-complementary

#641C1E #1C643E #1C4264

monochromatic

#180707 #340F10 #641C1E #94292C #C4373B

Accessibility & contrast

On white

12.16

#641C1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#641C1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C1E

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C1E	#FFFFFF	#000000	##FFFFFF
##641C1E	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)

#2F2C1D

Deuteranopia (green-blind)

#423B1C

Tritanopia (blue-blind)

#6E091D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641c1e;
/* rgb */ color: rgb(100, 28, 30);
/* oklch */ color: oklch(34.4% 0.103 22.9);

Tailwind

colors: {
  custom: {
    50: '#965d59',
    500: '#641c1e',
    950: '#000000',
  },
}

SCSS

$custom: #641c1e;
$custom-light: #965d59;
$custom-dark: #000000;

JSON

{
  "hex": "#641c1e",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 30
  },
  "hsl": {
    "h": 358.333,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34376,
    "c": 0.1035,
    "h": 22.9
  },
  "luminance": 0.03634
}

Semantic roles & 50–950 ramp

primary

#641C1E

secondary

#439997

accent

#E0DB48

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #641C1E

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

Preview Lab → · Contrast checker → · Palette generator →