#661E0F#661E0F

#661E0F is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.106 H 33.5°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#661E0F
RGB	rgb(102, 30, 15)
HSL	hsl(10, 74%, 23%)
HSV	hsv(10, 85%, 40%)
CMYK	cmyk(0%, 70.6%, 85.3%, 60%)
CIE-LAB	lab(22.96, 31.49, 27.21)
CIE-LCH	lch(22.96, 41.62, 40.82°)
OKLab	oklab(34.79% 0.0888 0.0588)
OKLCH	oklch(34.79% 0.107 33.5)
XYZ	xyz(6.0307, 3.7887, 0.8656)
Luminance	0.0379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661E0F #0F5766

analogous

#660F2B #661E0F #66490F

triadic

#661E0F #0F661E #1E0F66

tetradic

#661E0F #2B660F #0F5766 #490F66

square

#661E0F #2B660F #0F5766 #490F66

split-complementary

#661E0F #0F6649 #0F2B66

monochromatic

#1B0804 #310E07 #661E0F #9B2E17 #D13D1F

Accessibility & contrast

On white

11.95

#661E0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661E0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661E0F

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661E0F	#FFFFFF	#000000	##FFFFFF
##661E0F	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332D0D

Deuteranopia (green-blind)

#453D0C

Tritanopia (blue-blind)

#71081B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661e0f;
/* rgb */ color: rgb(102, 30, 15);
/* oklch */ color: oklch(34.8% 0.106 33.5);

Tailwind

colors: {
  custom: {
    50: '#995e4e',
    500: '#661e0f',
    950: '#000000',
  },
}

SCSS

$custom: #661e0f;
$custom-light: #995e4e;
$custom-dark: #000000;

JSON

{
  "hex": "#661e0f",
  "rgb": {
    "r": 102,
    "g": 30,
    "b": 15
  },
  "hsl": {
    "h": 10.345,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34786,
    "c": 0.1065,
    "h": 33.5
  },
  "luminance": 0.03788
}

Semantic roles & 50–950 ramp

primary

#661E0F

secondary

#328C9F

accent

#D1F137

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0502

muted

#7F7978

Preview Lab

Preview with #661E0F

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

Preview Lab → · Contrast checker → · Palette generator →