#66151F#66151F

#66151F is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.113 H 19.2°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#66151F
RGB	rgb(102, 21, 31)
HSL	hsl(353, 66%, 24%)
HSV	hsv(353, 79%, 40%)
CMYK	cmyk(0%, 79.4%, 69.6%, 60%)
CIE-LAB	lab(21.80, 36.10, 15.70)
CIE-LCH	lch(21.80, 39.36, 23.51°)
OKLab	oklab(33.99% 0.107 0.0373)
OKLCH	oklch(33.99% 0.113 19.2)
XYZ	xyz(5.9956, 3.4609, 1.6484)
Luminance	0.0346 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66151F #15665C

analogous

#661548 #66151F #663415

triadic

#66151F #1F6615 #151F66

tetradic

#66151F #486615 #15665C #341566

square

#66151F #486615 #15665C #341566

split-complementary

#66151F #156634 #154866

monochromatic

#190508 #330B10 #66151F #991F2E #CC2A3E

Accessibility & contrast

On white

12.41

#66151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#66151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66151F

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66151F	#FFFFFF	#000000	##FFFFFF
##66151F	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C291F

Deuteranopia (green-blind)

#413A1D

Tritanopia (blue-blind)

#710019

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66151f;
/* rgb */ color: rgb(102, 21, 31);
/* oklch */ color: oklch(34.0% 0.113 19.2);

Tailwind

colors: {
  custom: {
    50: '#985a5a',
    500: '#66151f',
    950: '#000000',
  },
}

SCSS

$custom: #66151f;
$custom-light: #985a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#66151f",
  "rgb": {
    "r": 102,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 352.593,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33994,
    "c": 0.1133,
    "h": 19.2
  },
  "luminance": 0.0346
}

Semantic roles & 50–950 ramp

primary

#66151F

secondary

#3A9D91

accent

#E9D43F

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #66151F

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

Preview Lab → · Contrast checker → · Palette generator →