#B53633#B53633

#B53633 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.164 H 26.0°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B53633
RGB	rgb(181, 54, 51)
HSL	hsl(1, 56%, 45%)
HSV	hsv(1, 72%, 71%)
CMYK	cmyk(0%, 70.2%, 71.8%, 29%)
CIE-LAB	lab(42.31, 50.80, 31.50)
CIE-LCH	lch(42.31, 59.77, 31.80°)
OKLab	oklab(52.23% 0.1475 0.072)
OKLCH	oklch(52.23% 0.164 26)
XYZ	xyz(20.9751, 12.7042, 4.4790)
Luminance	0.1270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53633 #33B2B5

analogous

#B53371 #B53633 #B57733

triadic

#B53633 #33B536 #3633B5

tetradic

#B53633 #71B533 #33B2B5 #7733B5

square

#B53633 #71B533 #33B2B5 #7733B5

split-complementary

#B53633 #33B577 #3371B5

monochromatic

#561A18 #852826 #B53633 #CF5956 #DD8886

Accessibility & contrast

On white

5.93

#B53633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B53633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53633

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53633	#FFFFFF	#000000	##FFFFFF
##B53633	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5231

Deuteranopia (green-blind)

#7A6E2F

Tritanopia (blue-blind)

#C70A37

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b53633;
/* rgb */ color: rgb(181, 54, 51);
/* oklch */ color: oklch(52.2% 0.164 26.0);

Tailwind

colors: {
  custom: {
    50: '#d3756b',
    500: '#b53633',
    950: '#000000',
  },
}

SCSS

$custom: #b53633;
$custom-light: #d3756b;
$custom-dark: #000000;

JSON

{
  "hex": "#b53633",
  "rgb": {
    "r": 181,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.385,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52226,
    "c": 0.16409,
    "h": 26
  },
  "luminance": 0.12701
}

Semantic roles & 50–950 ramp

primary

#B53633

secondary

#7DC5C6

accent

#DCDF48

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53633

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

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