#661010#661010

#661010 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.3% C 0.119 H 26.6°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#661010
RGB	rgb(102, 16, 16)
HSL	hsl(0, 73%, 23%)
HSV	hsv(0, 84%, 40%)
CMYK	cmyk(0%, 84.3%, 84.3%, 60%)
CIE-LAB	lab(20.96, 37.09, 24.53)
CIE-LCH	lch(20.96, 44.47, 33.48°)
OKLab	oklab(33.29% 0.1065 0.0535)
OKLCH	oklch(33.29% 0.119 26.6)
XYZ	xyz(5.7590, 3.2337, 0.8110)
Luminance	0.0323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661010 #106666

analogous

#66103B #661010 #663B10

triadic

#661010 #106610 #101066

tetradic

#661010 #3B6610 #106666 #3B1066

square

#661010 #3B6610 #106666 #3B1066

split-complementary

#661010 #10663B #103B66

monochromatic

#1A0404 #310808 #661010 #9B1818 #D02121

Accessibility & contrast

On white

12.75

#661010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#661010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661010

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661010	#FFFFFF	#000000	##FFFFFF
##661010	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260F

Deuteranopia (green-blind)

#41390C

Tritanopia (blue-blind)

#710011

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #661010;
/* rgb */ color: rgb(102, 16, 16);
/* oklch */ color: oklch(33.3% 0.119 26.6);

Tailwind

colors: {
  custom: {
    50: '#99584e',
    500: '#661010',
    950: '#000000',
  },
}

SCSS

$custom: #661010;
$custom-light: #99584e;
$custom-dark: #000000;

JSON

{
  "hex": "#661010",
  "rgb": {
    "r": 102,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33293,
    "c": 0.11918,
    "h": 26.6
  },
  "luminance": 0.03233
}

Semantic roles & 50–950 ramp

primary

#661010

secondary

#339E9E

accent

#F0F038

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #661010

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

Preview Lab → · Contrast checker → · Palette generator →