#B33B45#B33B45

#B33B45 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.155 H 19.5°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B33B45
RGB	rgb(179, 59, 69)
HSL	hsl(355, 50%, 47%)
HSV	hsv(355, 67%, 70%)
CMYK	cmyk(0%, 67%, 61.5%, 29.8%)
CIE-LAB	lab(42.98, 49.15, 21.39)
CIE-LCH	lch(42.98, 53.60, 23.51°)
OKLab	oklab(52.75% 0.1461 0.0518)
OKLCH	oklch(52.75% 0.155 19.5)
XYZ	xyz(21.2306, 13.1442, 7.0482)
Luminance	0.1314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33B45 #3BB3A9

analogous

#B33B81 #B33B45 #B36D3B

triadic

#B33B45 #45B33B #3B45B3

tetradic

#B33B45 #81B33B #3BB3A9 #6D3BB3

square

#B33B45 #81B33B #3BB3A9 #6D3BB3

split-complementary

#B33B45 #3BB36D #3B81B3

monochromatic

#571D22 #852C33 #B33B45 #CB6069 #DA8E95

Accessibility & contrast

On white

5.79

#B33B45 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B33B45 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33B45

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33B45	#FFFFFF	#000000	##FFFFFF
##B33B45	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5545

Deuteranopia (green-blind)

#796F42

Tritanopia (blue-blind)

#C4203F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33b45;
/* rgb */ color: rgb(179, 59, 69);
/* oklch */ color: oklch(52.7% 0.155 19.5);

Tailwind

colors: {
  custom: {
    50: '#d07878',
    500: '#b33b45',
    950: '#000000',
  },
}

SCSS

$custom: #b33b45;
$custom-light: #d07878;
$custom-dark: #000000;

JSON

{
  "hex": "#b33b45",
  "rgb": {
    "r": 179,
    "g": 59,
    "b": 69
  },
  "hsl": {
    "h": 355,
    "s": 50.42,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52749,
    "c": 0.15505,
    "h": 19.5
  },
  "luminance": 0.13141
}

Semantic roles & 50–950 ramp

primary

#B33B45

secondary

#85C5BF

accent

#DACE4E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B33B45

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

Preview Lab → · Contrast checker → · Palette generator →