#B5333B#B5333B

#B5333B is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.166 H 21.9°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B5333B
RGB	rgb(181, 51, 59)
HSL	hsl(356, 56%, 45%)
HSV	hsv(356, 72%, 71%)
CMYK	cmyk(0%, 71.8%, 67.4%, 29%)
CIE-LAB	lab(42.02, 52.35, 26.35)
CIE-LCH	lch(42.02, 58.61, 26.71°)
OKLab	oklab(52.04% 0.1541 0.0619)
OKLCH	oklch(52.04% 0.166 21.9)
XYZ	xyz(21.0316, 12.5103, 5.4441)
Luminance	0.1251 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5333B #33B5AD

analogous

#B5337C #B5333B #B56C33

triadic

#B5333B #3BB533 #333BB5

tetradic

#B5333B #7CB533 #33B5AD #6C33B5

square

#B5333B #7CB533 #33B5AD #6C33B5

split-complementary

#B5333B #33B56C #337CB5

monochromatic

#56181C #85262B #B5333B #CF565D #DD868B

Accessibility & contrast

On white

6.00

#B5333B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B5333B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5333B

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5333B	#FFFFFF	#000000	##FFFFFF
##B5333B	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57513A

Deuteranopia (green-blind)

#786D37

Tritanopia (blue-blind)

#C70337

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b5333b;
/* rgb */ color: rgb(181, 51, 59);
/* oklch */ color: oklch(52.0% 0.166 21.9);

Tailwind

colors: {
  custom: {
    50: '#d37471',
    500: '#b5333b',
    950: '#000000',
  },
}

SCSS

$custom: #b5333b;
$custom-light: #d37471;
$custom-dark: #000000;

JSON

{
  "hex": "#b5333b",
  "rgb": {
    "r": 181,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 356.308,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52042,
    "c": 0.16607,
    "h": 21.9
  },
  "luminance": 0.12507
}

Semantic roles & 50–950 ramp

primary

#B5333B

secondary

#7DC6C2

accent

#DFD648

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B5333B

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

Preview Lab → · Contrast checker → · Palette generator →