#B4333B#B4333B

#B4333B is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.165 H 21.8°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B4333B
RGB	rgb(180, 51, 59)
HSL	hsl(356, 56%, 45%)
HSV	hsv(356, 72%, 71%)
CMYK	cmyk(0%, 71.7%, 67.2%, 29.4%)
CIE-LAB	lab(41.83, 52.04, 26.07)
CIE-LCH	lch(41.83, 58.20, 26.61°)
OKLab	oklab(51.87% 0.1532 0.0613)
OKLCH	oklch(51.87% 0.165 21.8)
XYZ	xyz(20.7979, 12.3898, 5.4332)
Luminance	0.1239 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4333B #33B4AC

analogous

#B4337B #B4333B #B46B33

triadic

#B4333B #3BB433 #333BB4

tetradic

#B4333B #7BB433 #33B4AC #6B33B4

square

#B4333B #7BB433 #33B4AC #6B33B4

split-complementary

#B4333B #33B46B #337BB4

monochromatic

#55181C #84252B #B4333B #CF555D #DC858A

Accessibility & contrast

On white

6.04

#B4333B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B4333B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4333B

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4333B	#FFFFFF	#000000	##FFFFFF
##B4333B	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57513A

Deuteranopia (green-blind)

#786D37

Tritanopia (blue-blind)

#C60537

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b4333b;
/* rgb */ color: rgb(180, 51, 59);
/* oklch */ color: oklch(51.9% 0.165 21.8);

Tailwind

colors: {
  custom: {
    50: '#d27471',
    500: '#b4333b',
    950: '#000000',
  },
}

SCSS

$custom: #b4333b;
$custom-light: #d27471;
$custom-dark: #000000;

JSON

{
  "hex": "#b4333b",
  "rgb": {
    "r": 180,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 356.279,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51868,
    "c": 0.16503,
    "h": 21.8
  },
  "luminance": 0.12387
}

Semantic roles & 50–950 ramp

primary

#B4333B

secondary

#7DC6C1

accent

#DFD649

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B4333B

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

Preview Lab → · Contrast checker → · Palette generator →