#A33F2B#A33F2B

#A33F2B is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.2% C 0.137 H 33.1°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#A33F2B
RGB	rgb(163, 63, 43)
HSL	hsl(10, 58%, 40%)
HSV	hsv(10, 74%, 64%)
CMYK	cmyk(0%, 61.3%, 73.6%, 36.1%)
CIE-LAB	lab(40.44, 40.19, 33.14)
CIE-LCH	lch(40.44, 52.09, 39.51°)
OKLab	oklab(50.18% 0.1147 0.0749)
OKLCH	oklch(50.18% 0.137 33.1)
XYZ	xyz(17.3196, 11.5183, 3.5963)
Luminance	0.1152 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33F2B #2B8FA3

analogous

#A32B53 #A33F2B #A37B2B

triadic

#A33F2B #2BA33F #3F2BA3

tetradic

#A33F2B #53A32B #2B8FA3 #7B2BA3

square

#A33F2B #53A32B #2B8FA3 #7B2BA3

split-complementary

#A33F2B #2BA37B #2B53A3

monochromatic

#421A11 #732C1E #A33F2B #CC563F #D9816F

Accessibility & contrast

On white

6.36

#A33F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#A33F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33F2B

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33F2B	#FFFFFF	#000000	##FFFFFF
##A33F2B	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5228

Deuteranopia (green-blind)

#736828

Tritanopia (blue-blind)

#B3283B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a33f2b;
/* rgb */ color: rgb(163, 63, 43);
/* oklch */ color: oklch(50.2% 0.137 33.1);

Tailwind

colors: {
  custom: {
    50: '#c57865',
    500: '#a33f2b',
    950: '#000000',
  },
}

SCSS

$custom: #a33f2b;
$custom-light: #c57865;
$custom-dark: #000000;

JSON

{
  "hex": "#a33f2b",
  "rgb": {
    "r": 163,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 10,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50183,
    "c": 0.13698,
    "h": 33.1
  },
  "luminance": 0.11516
}

Semantic roles & 50–950 ramp

primary

#A33F2B

secondary

#6AB2C0

accent

#C8E146

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A33F2B

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

Preview Lab → · Contrast checker → · Palette generator →