#B33B40#B33B40

#B33B40 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.155 H 21.9°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B33B40
RGB	rgb(179, 59, 64)
HSL	hsl(358, 50%, 47%)
HSV	hsv(358, 67%, 70%)
CMYK	cmyk(0%, 67%, 64.2%, 29.8%)
CIE-LAB	lab(42.89, 48.83, 24.32)
CIE-LCH	lch(42.89, 54.55, 26.48°)
OKLab	oklab(52.65% 0.1442 0.058)
OKLCH	oklch(52.65% 0.155 21.9)
XYZ	xyz(21.0819, 13.0847, 6.2650)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33B40 #3BB3AE

analogous

#B33B7C #B33B40 #B3723B

triadic

#B33B40 #40B33B #3B40B3

tetradic

#B33B40 #7CB33B #3BB3AE #723BB3

square

#B33B40 #7CB33B #3BB3AE #723BB3

split-complementary

#B33B40 #3BB372 #3B7CB3

monochromatic

#571D1F #852C30 #B33B40 #CB6065 #DA8E92

Accessibility & contrast

On white

5.81

#B33B40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B33B40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33B40

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33B40	#FFFFFF	#000000	##FFFFFF
##B33B40	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553F

Deuteranopia (green-blind)

#796F3D

Tritanopia (blue-blind)

#C41E3E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33b40;
/* rgb */ color: rgb(179, 59, 64);
/* oklch */ color: oklch(52.7% 0.155 21.9);

Tailwind

colors: {
  custom: {
    50: '#d17874',
    500: '#b33b40',
    950: '#000000',
  },
}

SCSS

$custom: #b33b40;
$custom-light: #d17874;
$custom-dark: #000000;

JSON

{
  "hex": "#b33b40",
  "rgb": {
    "r": 179,
    "g": 59,
    "b": 64
  },
  "hsl": {
    "h": 357.5,
    "s": 50.42,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52654,
    "c": 0.15539,
    "h": 21.9
  },
  "luminance": 0.13082
}

Semantic roles & 50–950 ramp

primary

#B33B40

secondary

#85C5C2

accent

#DAD44E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33B40

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

Preview Lab → · Contrast checker → · Palette generator →