#A33A23#A33A23

#A33A23 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.4% C 0.144 H 33.9°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#A33A23
RGB	rgb(163, 58, 35)
HSL	hsl(11, 65%, 39%)
HSV	hsv(11, 79%, 64%)
CMYK	cmyk(0%, 64.4%, 78.5%, 36.1%)
CIE-LAB	lab(39.47, 42.18, 36.54)
CIE-LCH	lch(39.47, 55.80, 40.91°)
OKLab	oklab(49.43% 0.1193 0.0802)
OKLCH	oklch(49.43% 0.144 33.9)
XYZ	xyz(16.9225, 10.9364, 2.8096)
Luminance	0.1093 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33A23 #238CA3

analogous

#A3234C #A33A23 #A37A23

triadic

#A33A23 #23A33A #3A23A3

tetradic

#A33A23 #4CA323 #238CA3 #7A23A3

square

#A33A23 #4CA323 #238CA3 #7A23A3

split-complementary

#A33A23 #23A37A #234CA3

monochromatic

#3E160D #712818 #A33A23 #D34E31 #DD7963

Accessibility & contrast

On white

6.59

#A33A23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#A33A23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33A23

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33A23	#FFFFFF	#000000	##FFFFFF
##A33A23	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E20

Deuteranopia (green-blind)

#72661F

Tritanopia (blue-blind)

#B31E35

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33a23;
/* rgb */ color: rgb(163, 58, 35);
/* oklch */ color: oklch(49.4% 0.144 33.9);

Tailwind

colors: {
  custom: {
    50: '#c6755f',
    500: '#a33a23',
    950: '#000000',
  },
}

SCSS

$custom: #a33a23;
$custom-light: #c6755f;
$custom-dark: #000000;

JSON

{
  "hex": "#a33a23",
  "rgb": {
    "r": 163,
    "g": 58,
    "b": 35
  },
  "hsl": {
    "h": 10.781,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49425,
    "c": 0.14377,
    "h": 33.9
  },
  "luminance": 0.10934
}

Semantic roles & 50–950 ramp

primary

#A33A23

secondary

#5FB1C3

accent

#CAE840

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140905

muted

#837B79

Preview Lab

Preview with #A33A23

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

Preview Lab → · Contrast checker → · Palette generator →