#B53F33#B53F33

#B53F33 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.155 H 29.1°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#B53F33
RGB	rgb(181, 63, 51)
HSL	hsl(6, 56%, 45%)
HSV	hsv(6, 72%, 71%)
CMYK	cmyk(0%, 65.2%, 71.8%, 29%)
CIE-LAB	lab(43.68, 47.08, 33.09)
CIE-LCH	lch(43.68, 57.54, 35.10°)
OKLab	oklab(53.25% 0.1358 0.0754)
OKLCH	oklch(53.25% 0.155 29.1)
XYZ	xyz(21.4334, 13.6208, 4.6318)
Luminance	0.1362 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F33 #33A9B5

analogous

#B53368 #B53F33 #B58033

triadic

#B53F33 #33B53F #3F33B5

tetradic

#B53F33 #68B533 #33A9B5 #8033B5

square

#B53F33 #68B533 #33A9B5 #8033B5

split-complementary

#B53F33 #33B580 #3368B5

monochromatic

#561E18 #852E26 #B53F33 #CF6156 #DD8E86

Accessibility & contrast

On white

5.64

#B53F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B53F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F33

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F33	#FFFFFF	#000000	##FFFFFF
##B53F33	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605731

Deuteranopia (green-blind)

#7D712F

Tritanopia (blue-blind)

#C7213D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f33;
/* rgb */ color: rgb(181, 63, 51);
/* oklch */ color: oklch(53.3% 0.155 29.1);

Tailwind

colors: {
  custom: {
    50: '#d37a6b',
    500: '#b53f33',
    950: '#000000',
  },
}

SCSS

$custom: #b53f33;
$custom-light: #d37a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f33",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 5.538,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53253,
    "c": 0.15532,
    "h": 29.1
  },
  "luminance": 0.13618
}

Semantic roles & 50–950 ramp

primary

#B53F33

secondary

#7DC0C6

accent

#D1DF48

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B53F33

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

Preview Lab → · Contrast checker → · Palette generator →