#A33E21#A33E21

#A33E21 is a mid, vivid red. Relative luminance 0.113; OKLCH L 49.9% C 0.140 H 36.5°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A33E21
RGB	rgb(163, 62, 33)
HSL	hsl(13, 66%, 38%)
HSV	hsv(13, 80%, 64%)
CMYK	cmyk(0%, 62%, 79.8%, 36.1%)
CIE-LAB	lab(40.15, 40.24, 38.30)
CIE-LCH	lch(40.15, 55.55, 43.58°)
OKLab	oklab(49.93% 0.1129 0.0835)
OKLCH	oklch(49.93% 0.14 36.5)
XYZ	xyz(17.1033, 11.3440, 2.7276)
Luminance	0.1134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33E21 #2186A3

analogous

#A32145 #A33E21 #A37F21

triadic

#A33E21 #21A33E #3E21A3

tetradic

#A33E21 #45A321 #2186A3 #7F21A3

square

#A33E21 #45A321 #2186A3 #7F21A3

split-complementary

#A33E21 #21A37F #2145A3

monochromatic

#3D170C #702B17 #A33E21 #D4522D #DF7C60

Accessibility & contrast

On white

6.43

#A33E21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#A33E21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33E21

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33E21	#FFFFFF	#000000	##FFFFFF
##A33E21	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A511D

Deuteranopia (green-blind)

#73671D

Tritanopia (blue-blind)

#B32538

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a33e21;
/* rgb */ color: rgb(163, 62, 33);
/* oklch */ color: oklch(49.9% 0.140 36.5);

Tailwind

colors: {
  custom: {
    50: '#c6775e',
    500: '#a33e21',
    950: '#000000',
  },
}

SCSS

$custom: #a33e21;
$custom-light: #c6775e;
$custom-dark: #000000;

JSON

{
  "hex": "#a33e21",
  "rgb": {
    "r": 163,
    "g": 62,
    "b": 33
  },
  "hsl": {
    "h": 13.385,
    "s": 66.327,
    "l": 38.431
  },
  "oklch": {
    "l": 0.49933,
    "c": 0.14043,
    "h": 36.5
  },
  "luminance": 0.11342
}

Semantic roles & 50–950 ramp

primary

#A33E21

secondary

#5CACC3

accent

#C3E93F

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140904

muted

#837B79

Preview Lab

Preview with #A33E21

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

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