#A63121#A63121

#A63121 is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.9% C 0.156 H 31.0°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A63121
RGB	rgb(166, 49, 33)
HSL	hsl(7, 67%, 39%)
HSV	hsv(7, 80%, 65%)
CMYK	cmyk(0%, 70.5%, 80.1%, 34.9%)
CIE-LAB	lab(38.58, 47.01, 36.89)
CIE-LCH	lch(38.58, 59.76, 38.12°)
OKLab	oklab(48.85% 0.1336 0.0802)
OKLCH	oklch(48.85% 0.156 31)
XYZ	xyz(17.1007, 10.4160, 2.5486)
Luminance	0.1041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63121 #2196A6

analogous

#A62154 #A63121 #A67421

triadic

#A63121 #21A631 #3121A6

tetradic

#A63121 #54A621 #2196A6 #7421A6

square

#A63121 #54A621 #2196A6 #7421A6

split-complementary

#A63121 #21A674 #2154A6

monochromatic

#40130D #732217 #A63121 #D6432F #E07162

Accessibility & contrast

On white

6.81

#A63121 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A63121 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63121

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63121	#FFFFFF	#000000	##FFFFFF
##A63121	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A1E

Deuteranopia (green-blind)

#70641C

Tritanopia (blue-blind)

#B7032E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a63121;
/* rgb */ color: rgb(166, 49, 33);
/* oklch */ color: oklch(48.9% 0.156 31.0);

Tailwind

colors: {
  custom: {
    50: '#c9715e',
    500: '#a63121',
    950: '#000000',
  },
}

SCSS

$custom: #a63121;
$custom-light: #c9715e;
$custom-dark: #000000;

JSON

{
  "hex": "#a63121",
  "rgb": {
    "r": 166,
    "g": 49,
    "b": 33
  },
  "hsl": {
    "h": 7.218,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4885,
    "c": 0.15581,
    "h": 31
  },
  "luminance": 0.10413
}

Semantic roles & 50–950 ramp

primary

#A63121

secondary

#5EB8C5

accent

#D5EA3E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A63121

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

Preview Lab → · Contrast checker → · Palette generator →