#64231A#64231A

#64231A is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.3% C 0.096 H 30.4°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#64231A
RGB	rgb(100, 35, 26)
HSL	hsl(7, 59%, 25%)
HSV	hsv(7, 74%, 39%)
CMYK	cmyk(0%, 65%, 74%, 60.8%)
CIE-LAB	lab(23.63, 28.76, 21.15)
CIE-LCH	lch(23.63, 35.70, 36.34°)
OKLab	oklab(35.26% 0.0829 0.0487)
OKLCH	oklch(35.26% 0.096 30.4)
XYZ	xyz(6.0436, 3.9868, 1.4284)
Luminance	0.0399 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64231A #1A5B64

analogous

#641A36 #64231A #64481A

triadic

#64231A #1A6423 #231A64

tetradic

#64231A #36641A #1A5B64 #481A64

square

#64231A #36641A #1A5B64 #481A64

split-complementary

#64231A #1A6448 #1A3664

monochromatic

#180806 #33120D #64231A #953427 #C54533

Accessibility & contrast

On white

11.68

#64231A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#64231A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64231A

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64231A	#FFFFFF	#000000	##FFFFFF
##64231A	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#352F19

Deuteranopia (green-blind)

#453E18

Tritanopia (blue-blind)

#6E1421

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #64231a;
/* rgb */ color: rgb(100, 35, 26);
/* oklch */ color: oklch(35.3% 0.096 30.4);

Tailwind

colors: {
  custom: {
    50: '#966156',
    500: '#64231a',
    950: '#000000',
  },
}

SCSS

$custom: #64231a;
$custom-light: #966156;
$custom-dark: #000000;

JSON

{
  "hex": "#64231a",
  "rgb": {
    "r": 100,
    "g": 35,
    "b": 26
  },
  "hsl": {
    "h": 7.297,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35258,
    "c": 0.09616,
    "h": 30.4
  },
  "luminance": 0.03986
}

Semantic roles & 50–950 ramp

primary

#64231A

secondary

#408F9A

accent

#CFE246

background

#F9F5F5

surface

#F2EAE9

border

#CCC6C5

text

#0E0503

muted

#7E7978

Preview Lab

Preview with #64231A

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

Preview Lab → · Contrast checker → · Palette generator →