#641C2B#641C2B

#641C2B is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.7% C 0.103 H 12.1°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#641C2B
RGB	rgb(100, 28, 43)
HSL	hsl(348, 56%, 25%)
HSV	hsv(348, 72%, 39%)
CMYK	cmyk(0%, 72%, 57%, 60.8%)
CIE-LAB	lab(22.71, 33.43, 8.55)
CIE-LCH	lch(22.71, 34.51, 14.35°)
OKLab	oklab(34.68% 0.1011 0.0216)
OKLCH	oklch(34.68% 0.103 12.1)
XYZ	xyz(6.1074, 3.7151, 2.6805)
Luminance	0.0371 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C2B #1C6455

analogous

#641C4F #641C2B #64311C

triadic

#641C2B #2B641C #1C2B64

tetradic

#641C2B #4F641C #1C6455 #311C64

square

#641C2B #4F641C #1C6455 #311C64

split-complementary

#641C2B #1C6431 #1C4F64

monochromatic

#18070A #340F16 #641C2B #942940 #C43754

Accessibility & contrast

On white

12.05

#641C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#641C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C2B

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C2B	#FFFFFF	#000000	##FFFFFF
##641C2B	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2D2B

Deuteranopia (green-blind)

#403C29

Tritanopia (blue-blind)

#6E0E22

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #641c2b;
/* rgb */ color: rgb(100, 28, 43);
/* oklch */ color: oklch(34.7% 0.103 12.1);

Tailwind

colors: {
  custom: {
    50: '#955d64',
    500: '#641c2b',
    950: '#000000',
  },
}

SCSS

$custom: #641c2b;
$custom-light: #955d64;
$custom-dark: #000000;

JSON

{
  "hex": "#641c2b",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 43
  },
  "hsl": {
    "h": 347.5,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34677,
    "c": 0.10335,
    "h": 12.1
  },
  "luminance": 0.03714
}

Semantic roles & 50–950 ramp

primary

#641C2B

secondary

#439987

accent

#E0C048

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #641C2B

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

Preview Lab → · Contrast checker → · Palette generator →