#A33D2B#A33D2B

#A33D2B is a mid, vivid red. Relative luminance 0.113; OKLCH L 49.9% C 0.139 H 32.2°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#A33D2B
RGB	rgb(163, 61, 43)
HSL	hsl(9, 58%, 40%)
HSV	hsv(9, 74%, 64%)
CMYK	cmyk(0%, 62.6%, 73.6%, 36.1%)
CIE-LAB	lab(40.08, 41.14, 32.74)
CIE-LCH	lch(40.08, 52.58, 38.52°)
OKLab	oklab(49.91% 0.1177 0.074)
OKLCH	oklch(49.91% 0.139 32.2)
XYZ	xyz(17.2108, 11.3008, 3.5600)
Luminance	0.1130 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33D2B #2B91A3

analogous

#A32B55 #A33D2B #A3792B

triadic

#A33D2B #2BA33D #3D2BA3

tetradic

#A33D2B #55A32B #2B91A3 #792BA3

square

#A33D2B #55A32B #2B91A3 #792BA3

split-complementary

#A33D2B #2BA379 #2B55A3

monochromatic

#421911 #732B1E #A33D2B #CC543F #D97F6F

Accessibility & contrast

On white

6.44

#A33D2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#A33D2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33D2B

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33D2B	#FFFFFF	#000000	##FFFFFF
##A33D2B	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595029

Deuteranopia (green-blind)

#726728

Tritanopia (blue-blind)

#B32539

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a33d2b;
/* rgb */ color: rgb(163, 61, 43);
/* oklch */ color: oklch(49.9% 0.139 32.2);

Tailwind

colors: {
  custom: {
    50: '#c57765',
    500: '#a33d2b',
    950: '#000000',
  },
}

SCSS

$custom: #a33d2b;
$custom-light: #c57765;
$custom-dark: #000000;

JSON

{
  "hex": "#a33d2b",
  "rgb": {
    "r": 163,
    "g": 61,
    "b": 43
  },
  "hsl": {
    "h": 9,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49913,
    "c": 0.13899,
    "h": 32.2
  },
  "luminance": 0.11298
}

Semantic roles & 50–950 ramp

primary

#A33D2B

secondary

#6AB3C0

accent

#CAE146

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A33D2B

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

Preview Lab → · Contrast checker → · Palette generator →