#66150F#66150F

#66150F is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.115 H 29.0°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#66150F
RGB	rgb(102, 21, 15)
HSL	hsl(4, 74%, 23%)
HSV	hsv(4, 85%, 40%)
CMYK	cmyk(0%, 79.4%, 85.3%, 60%)
CIE-LAB	lab(21.57, 35.31, 25.74)
CIE-LCH	lch(21.57, 43.70, 36.09°)
OKLab	oklab(33.74% 0.1007 0.0558)
OKLCH	oklch(33.74% 0.115 29)
XYZ	xyz(5.8346, 3.3965, 0.8002)
Luminance	0.0340 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66150F #0F6066

analogous

#660F34 #66150F #66400F

triadic

#66150F #0F6615 #150F66

tetradic

#66150F #34660F #0F6066 #400F66

square

#66150F #34660F #0F6066 #400F66

split-complementary

#66150F #0F6640 #0F3466

monochromatic

#1B0504 #310A07 #66150F #9B2017 #D12B1F

Accessibility & contrast

On white

12.51

#66150F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#66150F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66150F

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66150F	#FFFFFF	#000000	##FFFFFF
##66150F	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E280D

Deuteranopia (green-blind)

#423A0B

Tritanopia (blue-blind)

#710015

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66150f;
/* rgb */ color: rgb(102, 21, 15);
/* oklch */ color: oklch(33.7% 0.115 29.0);

Tailwind

colors: {
  custom: {
    50: '#995a4e',
    500: '#66150f',
    950: '#000000',
  },
}

SCSS

$custom: #66150f;
$custom-light: #995a4e;
$custom-dark: #000000;

JSON

{
  "hex": "#66150f",
  "rgb": {
    "r": 102,
    "g": 21,
    "b": 15
  },
  "hsl": {
    "h": 4.138,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33743,
    "c": 0.11513,
    "h": 29
  },
  "luminance": 0.03396
}

Semantic roles & 50–950 ramp

primary

#66150F

secondary

#32979F

accent

#E4F137

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #66150F

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

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