#661F0F#661F0F

#661F0F is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.105 H 34.1°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#661F0F
RGB	rgb(102, 31, 15)
HSL	hsl(11, 74%, 23%)
HSV	hsv(11, 85%, 40%)
CMYK	cmyk(0%, 69.6%, 85.3%, 60%)
CIE-LAB	lab(23.14, 31.02, 27.38)
CIE-LCH	lch(23.14, 41.38, 41.44°)
OKLab	oklab(34.92% 0.0874 0.0592)
OKLCH	oklch(34.92% 0.106 34.1)
XYZ	xyz(6.0564, 3.8401, 0.8742)
Luminance	0.0384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661F0F #0F5666

analogous

#660F2B #661F0F #664A0F

triadic

#661F0F #0F661F #1F0F66

tetradic

#661F0F #2B660F #0F5666 #4A0F66

square

#661F0F #2B660F #0F5666 #4A0F66

split-complementary

#661F0F #0F664A #0F2B66

monochromatic

#1B0804 #310F07 #661F0F #9B2F17 #D13F1F

Accessibility & contrast

On white

11.88

#661F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#661F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661F0F

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661F0F	#FFFFFF	#000000	##FFFFFF
##661F0F	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332D0D

Deuteranopia (green-blind)

#453D0C

Tritanopia (blue-blind)

#710A1C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661f0f;
/* rgb */ color: rgb(102, 31, 15);
/* oklch */ color: oklch(34.9% 0.105 34.1);

Tailwind

colors: {
  custom: {
    50: '#995f4e',
    500: '#661f0f',
    950: '#000000',
  },
}

SCSS

$custom: #661f0f;
$custom-light: #995f4e;
$custom-dark: #000000;

JSON

{
  "hex": "#661f0f",
  "rgb": {
    "r": 102,
    "g": 31,
    "b": 15
  },
  "hsl": {
    "h": 11.034,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34918,
    "c": 0.1055,
    "h": 34.1
  },
  "luminance": 0.03839
}

Semantic roles & 50–950 ramp

primary

#661F0F

secondary

#328B9F

accent

#CFF137

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0502

muted

#7F7978

Preview Lab

Preview with #661F0F

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

Preview Lab → · Contrast checker → · Palette generator →