#661E10#661E10

#661E10 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.106 H 33.0°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#661E10
RGB	rgb(102, 30, 16)
HSL	hsl(10, 73%, 23%)
HSV	hsv(10, 84%, 40%)
CMYK	cmyk(0%, 70.6%, 84.3%, 60%)
CIE-LAB	lab(22.97, 31.53, 26.67)
CIE-LCH	lch(22.97, 41.30, 40.23°)
OKLab	oklab(34.8% 0.0891 0.0579)
OKLCH	oklch(34.8% 0.106 33)
XYZ	xyz(6.0380, 3.7916, 0.9040)
Luminance	0.0379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661E10 #105866

analogous

#66102D #661E10 #664910

triadic

#661E10 #10661E #1E1066

tetradic

#661E10 #2D6610 #105866 #491066

square

#661E10 #2D6610 #105866 #491066

split-complementary

#661E10 #106649 #102D66

monochromatic

#1A0804 #310E08 #661E10 #9B2E18 #D03D21

Accessibility & contrast

On white

11.94

#661E10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661E10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661E10

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661E10	#FFFFFF	#000000	##FFFFFF
##661E10	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332D0E

Deuteranopia (green-blind)

#453D0D

Tritanopia (blue-blind)

#71081B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661e10;
/* rgb */ color: rgb(102, 30, 16);
/* oklch */ color: oklch(34.8% 0.106 33.0);

Tailwind

colors: {
  custom: {
    50: '#995e4f',
    500: '#661e10',
    950: '#000000',
  },
}

SCSS

$custom: #661e10;
$custom-light: #995e4f;
$custom-dark: #000000;

JSON

{
  "hex": "#661e10",
  "rgb": {
    "r": 102,
    "g": 30,
    "b": 16
  },
  "hsl": {
    "h": 9.767,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34797,
    "c": 0.10629,
    "h": 33
  },
  "luminance": 0.03791
}

Semantic roles & 50–950 ramp

primary

#661E10

secondary

#338D9E

accent

#D2F038

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0502

muted

#7F7978

Preview Lab

Preview with #661E10

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

Preview Lab → · Contrast checker → · Palette generator →