#A61D21#A61D21

#A61D21 is a mid, vivid red. Relative luminance 0.091; OKLCH L 47.1% C 0.172 H 25.8°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#A61D21
RGB	rgb(166, 29, 33)
HSL	hsl(358, 70%, 38%)
HSV	hsv(358, 83%, 65%)
CMYK	cmyk(0%, 82.5%, 80.1%, 34.9%)
CIE-LAB	lab(36.17, 53.71, 34.44)
CIE-LCH	lch(36.17, 63.80, 32.66°)
OKLab	oklab(47.06% 0.1547 0.0748)
OKLCH	oklch(47.06% 0.172 25.8)
XYZ	xyz(16.4418, 9.0982, 2.3290)
Luminance	0.0910 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A61D21 #1DA6A2

analogous

#A61D65 #A61D21 #A65D1D

triadic

#A61D21 #21A61D #1D21A6

tetradic

#A61D21 #65A61D #1DA6A2 #5D1DA6

square

#A61D21 #65A61D #1DA6A2 #5D1DA6

split-complementary

#A61D21 #1DA65D #1D65A6

monochromatic

#3E0B0C #721417 #A61D21 #D9272C #E25B5F

Accessibility & contrast

On white

7.45

#A61D21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#A61D21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A61D21

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A61D21	#FFFFFF	#000000	##FFFFFF
##A61D21	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A421F

Deuteranopia (green-blind)

#6B601B

Tritanopia (blue-blind)

#B70021

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a61d21;
/* rgb */ color: rgb(166, 29, 33);
/* oklch */ color: oklch(47.1% 0.172 25.8);

Tailwind

colors: {
  custom: {
    50: '#ca685d',
    500: '#a61d21',
    950: '#000000',
  },
}

SCSS

$custom: #a61d21;
$custom-light: #ca685d;
$custom-dark: #000000;

JSON

{
  "hex": "#a61d21",
  "rgb": {
    "r": 166,
    "g": 29,
    "b": 33
  },
  "hsl": {
    "h": 358.248,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.47057,
    "c": 0.17178,
    "h": 25.8
  },
  "luminance": 0.09096
}

Semantic roles & 50–950 ramp

primary

#A61D21

secondary

#59C6C3

accent

#EDE83B

background

#FDF6F5

surface

#FBEBE9

border

#D4C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A61D21

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

Preview Lab → · Contrast checker → · Palette generator →