#64231D#64231D

#64231D is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.3% C 0.095 H 28.2°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#64231D
RGB	rgb(100, 35, 29)
HSL	hsl(5, 55%, 25%)
HSV	hsv(5, 71%, 39%)
CMYK	cmyk(0%, 65%, 71%, 60.8%)
CIE-LAB	lab(23.67, 28.94, 19.27)
CIE-LCH	lch(23.67, 34.77, 33.66°)
OKLab	oklab(35.31% 0.0842 0.0451)
OKLCH	oklch(35.31% 0.095 28.2)
XYZ	xyz(6.0789, 4.0009, 1.6143)
Luminance	0.0400 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64231D #1D5E64

analogous

#641D3B #64231D #64461D

triadic

#64231D #1D6423 #231D64

tetradic

#64231D #3B641D #1D5E64 #461D64

square

#64231D #3B641D #1D5E64 #461D64

split-complementary

#64231D #1D6446 #1D3B64

monochromatic

#180807 #35120F #64231D #93342B #C34439

Accessibility & contrast

On white

11.67

#64231D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#64231D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64231D

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64231D	#FFFFFF	#000000	##FFFFFF
##64231D	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34301C

Deuteranopia (green-blind)

#443E1B

Tritanopia (blue-blind)

#6E1522

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #64231d;
/* rgb */ color: rgb(100, 35, 29);
/* oklch */ color: oklch(35.3% 0.095 28.2);

Tailwind

colors: {
  custom: {
    50: '#956159',
    500: '#64231d',
    950: '#000000',
  },
}

SCSS

$custom: #64231d;
$custom-light: #956159;
$custom-dark: #000000;

JSON

{
  "hex": "#64231d",
  "rgb": {
    "r": 100,
    "g": 35,
    "b": 29
  },
  "hsl": {
    "h": 5.07,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35309,
    "c": 0.09547,
    "h": 28.2
  },
  "luminance": 0.04
}

Semantic roles & 50–950 ramp

primary

#64231D

secondary

#449299

accent

#D2DE49

background

#F9F5F5

surface

#F2EAE9

border

#CCC6C5

text

#0E0503

muted

#7E7978

Preview Lab

Preview with #64231D

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

Preview Lab → · Contrast checker → · Palette generator →