#661D10#661D10

#661D10 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.7% C 0.107 H 32.4°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#661D10
RGB	rgb(102, 29, 16)
HSL	hsl(9, 73%, 23%)
HSV	hsv(9, 84%, 40%)
CMYK	cmyk(0%, 71.6%, 84.3%, 60%)
CIE-LAB	lab(22.80, 31.99, 26.50)
CIE-LCH	lch(22.80, 41.54, 39.63°)
OKLab	oklab(34.67% 0.0906 0.0575)
OKLCH	oklch(34.67% 0.107 32.4)
XYZ	xyz(6.0131, 3.7418, 0.8957)
Luminance	0.0374 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D10 #105966

analogous

#66102E #661D10 #664810

triadic

#661D10 #10661D #1D1066

tetradic

#661D10 #2E6610 #105966 #481066

square

#661D10 #2E6610 #105966 #481066

split-complementary

#661D10 #106648 #102E66

monochromatic

#1A0804 #310E08 #661D10 #9B2C18 #D03B21

Accessibility & contrast

On white

12.01

#661D10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#661D10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D10

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D10	#FFFFFF	#000000	##FFFFFF
##661D10	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322C0E

Deuteranopia (green-blind)

#443C0D

Tritanopia (blue-blind)

#71061B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661d10;
/* rgb */ color: rgb(102, 29, 16);
/* oklch */ color: oklch(34.7% 0.107 32.4);

Tailwind

colors: {
  custom: {
    50: '#995e4f',
    500: '#661d10',
    950: '#000000',
  },
}

SCSS

$custom: #661d10;
$custom-light: #995e4f;
$custom-dark: #000000;

JSON

{
  "hex": "#661d10",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 16
  },
  "hsl": {
    "h": 9.07,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34668,
    "c": 0.1073,
    "h": 32.4
  },
  "luminance": 0.03741
}

Semantic roles & 50–950 ramp

primary

#661D10

secondary

#338E9E

accent

#D4F038

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661D10

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

Preview Lab → · Contrast checker → · Palette generator →