#641B13#641B13

#641B13 is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.1% C 0.106 H 29.8°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#641B13
RGB	rgb(100, 27, 19)
HSL	hsl(6, 68%, 23%)
HSV	hsv(6, 81%, 39%)
CMYK	cmyk(0%, 73%, 81%, 60.8%)
CIE-LAB	lab(22.09, 32.27, 23.85)
CIE-LCH	lch(22.09, 40.13, 36.47°)
OKLab	oklab(34.07% 0.0923 0.0529)
OKLCH	oklch(34.07% 0.106 29.8)
XYZ	xyz(5.7657, 3.5411, 0.9959)
Luminance	0.0354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641B13 #135C64

analogous

#641333 #641B13 #644313

triadic

#641B13 #13641B #1B1364

tetradic

#641B13 #336413 #135C64 #431364

square

#641B13 #336413 #135C64 #431364

split-complementary

#641B13 #136443 #133364

monochromatic

#1A0705 #310D09 #641B13 #97291D #CB3727

Accessibility & contrast

On white

12.30

#641B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#641B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641B13

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641B13	#FFFFFF	#000000	##FFFFFF
##641B13	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302B12

Deuteranopia (green-blind)

#423B10

Tritanopia (blue-blind)

#6F041A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641b13;
/* rgb */ color: rgb(100, 27, 19);
/* oklch */ color: oklch(34.1% 0.106 29.8);

Tailwind

colors: {
  custom: {
    50: '#975c51',
    500: '#641b13',
    950: '#000000',
  },
}

SCSS

$custom: #641b13;
$custom-light: #975c51;
$custom-dark: #000000;

JSON

{
  "hex": "#641b13",
  "rgb": {
    "r": 100,
    "g": 27,
    "b": 19
  },
  "hsl": {
    "h": 5.926,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.34074,
    "c": 0.10639,
    "h": 29.8
  },
  "luminance": 0.0354
}

Semantic roles & 50–950 ramp

primary

#641B13

secondary

#37929C

accent

#DAEB3D

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #641B13

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

Preview Lab → · Contrast checker → · Palette generator →