#A33B28#A33B28

#A33B28 is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.6% C 0.142 H 32.5°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#A33B28
RGB	rgb(163, 59, 40)
HSL	hsl(9, 61%, 40%)
HSV	hsv(9, 75%, 64%)
CMYK	cmyk(0%, 63.8%, 75.5%, 36.1%)
CIE-LAB	lab(39.70, 41.93, 34.02)
CIE-LCH	lch(39.70, 53.99, 39.05°)
OKLab	oklab(49.61% 0.1195 0.0761)
OKLCH	oklch(49.61% 0.142 32.5)
XYZ	xyz(17.0531, 11.0701, 3.2458)
Luminance	0.1107 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33B28 #2890A3

analogous

#A32853 #A33B28 #A37828

triadic

#A33B28 #28A33B #3B28A3

tetradic

#A33B28 #53A328 #2890A3 #7828A3

square

#A33B28 #53A328 #2890A3 #7828A3

split-complementary

#A33B28 #28A378 #2853A3

monochromatic

#411710 #72291C #A33B28 #CF513A #DB7C6B

Accessibility & contrast

On white

6.53

#A33B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A33B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33B28

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33B28	#FFFFFF	#000000	##FFFFFF
##A33B28	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F25

Deuteranopia (green-blind)

#726625

Tritanopia (blue-blind)

#B32137

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33b28;
/* rgb */ color: rgb(163, 59, 40);
/* oklch */ color: oklch(49.6% 0.142 32.5);

Tailwind

colors: {
  custom: {
    50: '#c67663',
    500: '#a33b28',
    950: '#000000',
  },
}

SCSS

$custom: #a33b28;
$custom-light: #c67663;
$custom-dark: #000000;

JSON

{
  "hex": "#a33b28",
  "rgb": {
    "r": 163,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 9.268,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49612,
    "c": 0.14167,
    "h": 32.5
  },
  "luminance": 0.11068
}

Semantic roles & 50–950 ramp

primary

#A33B28

secondary

#66B3C1

accent

#CBE444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140905

muted

#837B79

Preview Lab

Preview with #A33B28

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

Preview Lab → · Contrast checker → · Palette generator →