#B33028#B33028

#B33028 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.169 H 28.2°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#B33028
RGB	rgb(179, 48, 40)
HSL	hsl(3, 63%, 43%)
HSV	hsv(3, 78%, 70%)
CMYK	cmyk(0%, 73.2%, 77.7%, 29.8%)
CIE-LAB	lab(40.98, 51.94, 36.27)
CIE-LCH	lch(40.98, 63.35, 34.93°)
OKLab	oklab(51.12% 0.149 0.0799)
OKLCH	oklch(51.12% 0.169 28.2)
XYZ	xyz(20.0327, 11.8539, 3.2403)
Luminance	0.1185 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33028 #28ABB3

analogous

#B32866 #B33028 #B37528

triadic

#B33028 #28B330 #3028B3

tetradic

#B33028 #66B328 #28ABB3 #7528B3

square

#B33028 #66B328 #28ABB3 #7528B3

split-complementary

#B33028 #28B375 #2866B3

monochromatic

#4F1512 #81231D #B33028 #D54C43 #E07B75

Accessibility & contrast

On white

6.23

#B33028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B33028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33028

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33028	#FFFFFF	#000000	##FFFFFF
##B33028	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574E26

Deuteranopia (green-blind)

#786B23

Tritanopia (blue-blind)

#C50030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33028;
/* rgb */ color: rgb(179, 48, 40);
/* oklch */ color: oklch(51.1% 0.169 28.2);

Tailwind

colors: {
  custom: {
    50: '#d37263',
    500: '#b33028',
    950: '#000000',
  },
}

SCSS

$custom: #b33028;
$custom-light: #d37263;
$custom-dark: #000000;

JSON

{
  "hex": "#b33028",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 40
  },
  "hsl": {
    "h": 3.453,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5112,
    "c": 0.16904,
    "h": 28.2
  },
  "luminance": 0.11851
}

Semantic roles & 50–950 ramp

primary

#B33028

secondary

#6FC3C8

accent

#DDE641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B33028

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

Preview Lab → · Contrast checker → · Palette generator →