#B5333F#B5333F

#B5333F is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.166 H 20.1°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B5333F
RGB	rgb(181, 51, 63)
HSL	hsl(354, 56%, 45%)
HSV	hsv(354, 72%, 71%)
CMYK	cmyk(0%, 71.8%, 65.2%, 29%)
CIE-LAB	lab(42.08, 52.58, 23.99)
CIE-LCH	lch(42.08, 57.80, 24.52°)
OKLab	oklab(52.11% 0.1557 0.0571)
OKLCH	oklch(52.11% 0.166 20.1)
XYZ	xyz(21.1393, 12.5534, 6.0116)
Luminance	0.1255 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5333F #33B5A9

analogous

#B53380 #B5333F #B56833

triadic

#B5333F #3FB533 #333FB5

tetradic

#B5333F #80B533 #33B5A9 #6833B5

square

#B5333F #80B533 #33B5A9 #6833B5

split-complementary

#B5333F #33B568 #3380B5

monochromatic

#56181E #85262E #B5333F #CF5661 #DD868E

Accessibility & contrast

On white

5.98

#B5333F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B5333F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5333F

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5333F	#FFFFFF	#000000	##FFFFFF
##B5333F	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57523E

Deuteranopia (green-blind)

#786D3B

Tritanopia (blue-blind)

#C70638

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b5333f;
/* rgb */ color: rgb(181, 51, 63);
/* oklch */ color: oklch(52.1% 0.166 20.1);

Tailwind

colors: {
  custom: {
    50: '#d27474',
    500: '#b5333f',
    950: '#000000',
  },
}

SCSS

$custom: #b5333f;
$custom-light: #d27474;
$custom-dark: #000000;

JSON

{
  "hex": "#b5333f",
  "rgb": {
    "r": 181,
    "g": 51,
    "b": 63
  },
  "hsl": {
    "h": 354.462,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52113,
    "c": 0.16579,
    "h": 20.1
  },
  "luminance": 0.1255
}

Semantic roles & 50–950 ramp

primary

#B5333F

secondary

#7DC6C0

accent

#DFD148

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B5333F

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

Preview Lab → · Contrast checker → · Palette generator →