#B33A30#B33A30

#B33A30 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.159 H 28.4°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B33A30
RGB	rgb(179, 58, 48)
HSL	hsl(5, 58%, 45%)
HSV	hsv(5, 73%, 70%)
CMYK	cmyk(0%, 67.6%, 73.2%, 29.8%)
CIE-LAB	lab(42.50, 48.37, 33.37)
CIE-LCH	lch(42.50, 58.77, 34.60°)
OKLab	oklab(52.29% 0.1395 0.0756)
OKLCH	oklch(52.29% 0.159 28.4)
XYZ	xyz(20.6392, 12.8262, 4.1847)
Luminance	0.1282 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A30 #30A9B3

analogous

#B33068 #B33A30 #B37C30

triadic

#B33A30 #30B33A #3A30B3

tetradic

#B33A30 #68B330 #30A9B3 #7C30B3

square

#B33A30 #68B330 #30A9B3 #7C30B3

split-complementary

#B33A30 #30B37C #3068B3

monochromatic

#521B16 #832A23 #B33A30 #D05A50 #DD8780

Accessibility & contrast

On white

5.89

#B33A30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B33A30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A30

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A30	#FFFFFF	#000000	##FFFFFF
##B33A30	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C542E

Deuteranopia (green-blind)

#7A6E2C

Tritanopia (blue-blind)

#C51739

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33a30;
/* rgb */ color: rgb(179, 58, 48);
/* oklch */ color: oklch(52.3% 0.159 28.4);

Tailwind

colors: {
  custom: {
    50: '#d27769',
    500: '#b33a30',
    950: '#000000',
  },
}

SCSS

$custom: #b33a30;
$custom-light: #d27769;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a30",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 48
  },
  "hsl": {
    "h": 4.58,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52285,
    "c": 0.1586,
    "h": 28.4
  },
  "luminance": 0.12823
}

Semantic roles & 50–950 ramp

primary

#B33A30

secondary

#79C0C6

accent

#D5E147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33A30

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

Preview Lab → · Contrast checker → · Palette generator →