#661A1F#661A1F

#661A1F is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.108 H 21.4°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#661A1F
RGB	rgb(102, 26, 31)
HSL	hsl(356, 59%, 25%)
HSV	hsv(356, 75%, 40%)
CMYK	cmyk(0%, 74.5%, 69.6%, 60%)
CIE-LAB	lab(22.53, 34.09, 16.61)
CIE-LCH	lch(22.53, 37.92, 25.98°)
OKLab	oklab(34.53% 0.1006 0.0393)
OKLCH	oklch(34.53% 0.108 21.4)
XYZ	xyz(6.0968, 3.6634, 1.6821)
Luminance	0.0366 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661A1F #1A6661

analogous

#661A45 #661A1F #663B1A

triadic

#661A1F #1F661A #1A1F66

tetradic

#661A1F #45661A #1A6661 #3B1A66

square

#661A1F #45661A #1A6661 #3B1A66

split-complementary

#661A1F #1A663B #1A4566

monochromatic

#180607 #350E10 #661A1F #97262E #C8333D

Accessibility & contrast

On white

12.12

#661A1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#661A1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661A1F

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661A1F	#FFFFFF	#000000	##FFFFFF
##661A1F	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2C1F

Deuteranopia (green-blind)

#423C1D

Tritanopia (blue-blind)

#71041C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661a1f;
/* rgb */ color: rgb(102, 26, 31);
/* oklch */ color: oklch(34.5% 0.108 21.4);

Tailwind

colors: {
  custom: {
    50: '#975c5a',
    500: '#661a1f',
    950: '#000000',
  },
}

SCSS

$custom: #661a1f;
$custom-light: #975c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#661a1f",
  "rgb": {
    "r": 102,
    "g": 26,
    "b": 31
  },
  "hsl": {
    "h": 356.053,
    "s": 59.375,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34532,
    "c": 0.10802,
    "h": 21.4
  },
  "luminance": 0.03662
}

Semantic roles & 50–950 ramp

primary

#661A1F

secondary

#409C96

accent

#E3D845

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #661A1F

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

Preview Lab → · Contrast checker → · Palette generator →