#B33F40#B33F40

#B33F40 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.151 H 23.3°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B33F40
RGB	rgb(179, 63, 64)
HSL	hsl(359, 48%, 47%)
HSV	hsv(359, 65%, 70%)
CMYK	cmyk(0%, 64.8%, 64.2%, 29.8%)
CIE-LAB	lab(43.52, 47.11, 25.13)
CIE-LCH	lch(43.52, 53.39, 28.07°)
OKLab	oklab(53.13% 0.1387 0.0598)
OKLCH	oklch(53.13% 0.151 23.3)
XYZ	xyz(21.2954, 13.5118, 6.3362)
Luminance	0.1351 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F40 #3FB3B2

analogous

#B33F7A #B33F40 #B3783F

triadic

#B33F40 #40B33F #3F40B3

tetradic

#B33F40 #7AB33F #3FB3B2 #783FB3

square

#B33F40 #7AB33F #3FB3B2 #783FB3

split-complementary

#B33F40 #3FB378 #3F7AB3

monochromatic

#581F20 #862F30 #B33F40 #C96667 #D99394

Accessibility & contrast

On white

5.67

#B33F40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B33F40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F40

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F40	#FFFFFF	#000000	##FFFFFF
##B33F40	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573F

Deuteranopia (green-blind)

#7B703D

Tritanopia (blue-blind)

#C42541

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b33f40;
/* rgb */ color: rgb(179, 63, 64);
/* oklch */ color: oklch(53.1% 0.151 23.3);

Tailwind

colors: {
  custom: {
    50: '#d07a75',
    500: '#b33f40',
    950: '#000000',
  },
}

SCSS

$custom: #b33f40;
$custom-light: #d07a75;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f40",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 64
  },
  "hsl": {
    "h": 359.483,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53129,
    "c": 0.15109,
    "h": 23.3
  },
  "luminance": 0.13509
}

Semantic roles & 50–950 ramp

primary

#B33F40

secondary

#89C4C4

accent

#D8D650

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B33F40

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

Preview Lab → · Contrast checker → · Palette generator →