#B33830#B33830

#B33830 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.161 H 27.8°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B33830
RGB	rgb(179, 56, 48)
HSL	hsl(4, 58%, 45%)
HSV	hsv(4, 73%, 70%)
CMYK	cmyk(0%, 68.7%, 73.2%, 29.8%)
CIE-LAB	lab(42.20, 49.20, 33.03)
CIE-LCH	lch(42.20, 59.25, 33.87°)
OKLab	oklab(52.06% 0.142 0.0748)
OKLCH	oklch(52.06% 0.161 27.8)
XYZ	xyz(20.5403, 12.6285, 4.1517)
Luminance	0.1263 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33830 #30ABB3

analogous

#B3306A #B33830 #B37A30

triadic

#B33830 #30B338 #3830B3

tetradic

#B33830 #6AB330 #30ABB3 #7A30B3

square

#B33830 #6AB330 #30ABB3 #7A30B3

split-complementary

#B33830 #30B37A #306AB3

monochromatic

#521A16 #832923 #B33830 #D05850 #DD8680

Accessibility & contrast

On white

5.96

#B33830 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B33830 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33830

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33830	#FFFFFF	#000000	##FFFFFF
##B33830	1.00	5.96	3.53	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532E

Deuteranopia (green-blind)

#796D2C

Tritanopia (blue-blind)

#C51237

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33830;
/* rgb */ color: rgb(179, 56, 48);
/* oklch */ color: oklch(52.1% 0.161 27.8);

Tailwind

colors: {
  custom: {
    50: '#d27669',
    500: '#b33830',
    950: '#000000',
  },
}

SCSS

$custom: #b33830;
$custom-light: #d27669;
$custom-dark: #000000;

JSON

{
  "hex": "#b33830",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 48
  },
  "hsl": {
    "h": 3.664,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52059,
    "c": 0.16052,
    "h": 27.8
  },
  "luminance": 0.12625
}

Semantic roles & 50–950 ramp

primary

#B33830

secondary

#79C1C6

accent

#D8E147

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33830

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

Preview Lab → · Contrast checker → · Palette generator →