#B53333#B53333

#B53333 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.167 H 25.1°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B53333
RGB	rgb(181, 51, 51)
HSL	hsl(0, 56%, 45%)
HSV	hsv(0, 72%, 71%)
CMYK	cmyk(0%, 71.8%, 71.8%, 29%)
CIE-LAB	lab(41.90, 51.94, 31.01)
CIE-LCH	lch(41.90, 60.50, 30.84°)
OKLab	oklab(51.92% 0.1511 0.0709)
OKLCH	oklch(51.92% 0.167 25.1)
XYZ	xyz(20.8397, 12.4336, 4.4339)
Luminance	0.1243 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53333 #33B5B5

analogous

#B53374 #B53333 #B57433

triadic

#B53333 #33B533 #3333B5

tetradic

#B53333 #74B533 #33B5B5 #7433B5

square

#B53333 #74B533 #33B5B5 #7433B5

split-complementary

#B53333 #33B574 #3374B5

monochromatic

#561818 #852626 #B53333 #CF5656 #DD8686

Accessibility & contrast

On white

6.02

#B53333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B53333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53333

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53333	#FFFFFF	#000000	##FFFFFF
##B53333	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585132

Deuteranopia (green-blind)

#796D2F

Tritanopia (blue-blind)

#C70035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b53333;
/* rgb */ color: rgb(181, 51, 51);
/* oklch */ color: oklch(51.9% 0.167 25.1);

Tailwind

colors: {
  custom: {
    50: '#d3746b',
    500: '#b53333',
    950: '#000000',
  },
}

SCSS

$custom: #b53333;
$custom-light: #d3746b;
$custom-dark: #000000;

JSON

{
  "hex": "#b53333",
  "rgb": {
    "r": 181,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51915,
    "c": 0.1669,
    "h": 25.1
  },
  "luminance": 0.1243
}

Semantic roles & 50–950 ramp

primary

#B53333

secondary

#7DC6C6

accent

#DFDF48

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53333

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

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