#64101E#64101E

#64101E is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.1% C 0.116 H 17.8°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#64101E
RGB	rgb(100, 16, 30)
HSL	hsl(350, 72%, 23%)
HSV	hsv(350, 84%, 39%)
CMYK	cmyk(0%, 84%, 70%, 60.8%)
CIE-LAB	lab(20.73, 37.12, 14.94)
CIE-LCH	lch(20.73, 40.01, 21.93°)
OKLab	oklab(33.12% 0.1103 0.0355)
OKLCH	oklch(33.12% 0.116 17.8)
XYZ	xyz(5.6758, 3.1745, 1.5419)
Luminance	0.0317 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64101E #106456

analogous

#641048 #64101E #642C10

triadic

#64101E #1E6410 #101E64

tetradic

#64101E #486410 #106456 #2C1064

square

#64101E #486410 #106456 #2C1064

split-complementary

#64101E #10642C #104864

monochromatic

#1A0408 #2F080E #64101E #99182E #CE213E

Accessibility & contrast

On white

12.85

#64101E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#64101E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64101E

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64101E	#FFFFFF	#000000	##FFFFFF
##64101E	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29271E

Deuteranopia (green-blind)

#3E381C

Tritanopia (blue-blind)

#6E0016

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #64101e;
/* rgb */ color: rgb(100, 16, 30);
/* oklch */ color: oklch(33.1% 0.116 17.8);

Tailwind

colors: {
  custom: {
    50: '#965859',
    500: '#64101e',
    950: '#000000',
  },
}

SCSS

$custom: #64101e;
$custom-light: #965859;
$custom-dark: #000000;

JSON

{
  "hex": "#64101e",
  "rgb": {
    "r": 100,
    "g": 16,
    "b": 30
  },
  "hsl": {
    "h": 350,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.33115,
    "c": 0.1159,
    "h": 17.8
  },
  "luminance": 0.03174
}

Semantic roles & 50–950 ramp

primary

#64101E

secondary

#339D8B

accent

#EFD139

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #64101E

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

Preview Lab → · Contrast checker → · Palette generator →