#64161B#64161B

#64161B is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.6% C 0.110 H 22.2°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#64161B
RGB	rgb(100, 22, 27)
HSL	hsl(356, 64%, 24%)
HSV	hsv(356, 78%, 39%)
CMYK	cmyk(0%, 78%, 73%, 60.8%)
CIE-LAB	lab(21.44, 34.79, 17.89)
CIE-LCH	lch(21.44, 39.11, 27.21°)
OKLab	oklab(33.63% 0.1022 0.0417)
OKLCH	oklch(33.63% 0.11 22.2)
XYZ	xyz(5.7409, 3.3631, 1.3836)
Luminance	0.0336 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64161B #16645F

analogous

#641642 #64161B #643816

triadic

#64161B #1B6416 #161B64

tetradic

#64161B #426416 #16645F #381664

square

#64161B #426416 #16645F #381664

split-complementary

#64161B #166438 #164264

monochromatic

#190607 #320B0D #64161B #962129 #C82C36

Accessibility & contrast

On white

12.56

#64161B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#64161B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64161B

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64161B	#FFFFFF	#000000	##FFFFFF
##64161B	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C291B

Deuteranopia (green-blind)

#403919

Tritanopia (blue-blind)

#6E0019

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #64161b;
/* rgb */ color: rgb(100, 22, 27);
/* oklch */ color: oklch(33.6% 0.110 22.2);

Tailwind

colors: {
  custom: {
    50: '#965a57',
    500: '#64161b',
    950: '#000000',
  },
}

SCSS

$custom: #64161b;
$custom-light: #965a57;
$custom-dark: #000000;

JSON

{
  "hex": "#64161b",
  "rgb": {
    "r": 100,
    "g": 22,
    "b": 27
  },
  "hsl": {
    "h": 356.154,
    "s": 63.934,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33627,
    "c": 0.11033,
    "h": 22.2
  },
  "luminance": 0.03362
}

Semantic roles & 50–950 ramp

primary

#64161B

secondary

#3B9B95

accent

#E7DC41

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #64161B

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

Preview Lab → · Contrast checker → · Palette generator →