#64231C#64231C

#64231C is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.3% C 0.096 H 28.9°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#64231C
RGB	rgb(100, 35, 28)
HSL	hsl(6, 56%, 25%)
HSV	hsv(6, 72%, 39%)
CMYK	cmyk(0%, 65%, 72%, 60.8%)
CIE-LAB	lab(23.66, 28.88, 19.90)
CIE-LCH	lch(23.66, 35.08, 34.57°)
OKLab	oklab(35.29% 0.0838 0.0463)
OKLCH	oklch(35.29% 0.096 28.9)
XYZ	xyz(6.0668, 3.9960, 1.5502)
Luminance	0.0399 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64231C #1C5D64

analogous

#641C39 #64231C #64471C

triadic

#64231C #1C6423 #231C64

tetradic

#64231C #39641C #1C5D64 #471C64

square

#64231C #39641C #1C5D64 #471C64

split-complementary

#64231C #1C6447 #1C3964

monochromatic

#180807 #34120F #64231C #943429 #C44437

Accessibility & contrast

On white

11.67

#64231C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#64231C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64231C

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64231C	#FFFFFF	#000000	##FFFFFF
##64231C	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)

#342F1B

Deuteranopia (green-blind)

#443E1A

Tritanopia (blue-blind)

#6E1522

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #64231c;
/* rgb */ color: rgb(100, 35, 28);
/* oklch */ color: oklch(35.3% 0.096 28.9);

Tailwind

colors: {
  custom: {
    50: '#966158',
    500: '#64231c',
    950: '#000000',
  },
}

SCSS

$custom: #64231c;
$custom-light: #966158;
$custom-dark: #000000;

JSON

{
  "hex": "#64231c",
  "rgb": {
    "r": 100,
    "g": 35,
    "b": 28
  },
  "hsl": {
    "h": 5.833,
    "s": 56.25,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35291,
    "c": 0.09569,
    "h": 28.9
  },
  "luminance": 0.03995
}

Semantic roles & 50–950 ramp

primary

#64231C

secondary

#439199

accent

#D1E048

background

#F9F5F5

surface

#F2EAE9

border

#CCC6C5

text

#0E0503

muted

#7E7978

Preview Lab

Preview with #64231C

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

Preview Lab → · Contrast checker → · Palette generator →