#B33128#B33128

#B33128 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.168 H 28.5°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B33128
RGB	rgb(179, 49, 40)
HSL	hsl(4, 63%, 43%)
HSV	hsv(4, 78%, 70%)
CMYK	cmyk(0%, 72.6%, 77.7%, 29.8%)
CIE-LAB	lab(41.12, 51.58, 36.41)
CIE-LCH	lch(41.12, 63.13, 35.22°)
OKLab	oklab(51.22% 0.1478 0.0802)
OKLCH	oklch(51.22% 0.168 28.5)
XYZ	xyz(20.0741, 11.9366, 3.2541)
Luminance	0.1193 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33128 #28AAB3

analogous

#B32864 #B33128 #B37628

triadic

#B33128 #28B331 #3128B3

tetradic

#B33128 #64B328 #28AAB3 #7628B3

square

#B33128 #64B328 #28AAB3 #7628B3

split-complementary

#B33128 #28B376 #2864B3

monochromatic

#4F1612 #81231D #B33128 #D54D43 #E07C75

Accessibility & contrast

On white

6.20

#B33128 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B33128 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33128

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33128	#FFFFFF	#000000	##FFFFFF
##B33128	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F26

Deuteranopia (green-blind)

#786B23

Tritanopia (blue-blind)

#C50030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33128;
/* rgb */ color: rgb(179, 49, 40);
/* oklch */ color: oklch(51.2% 0.168 28.5);

Tailwind

colors: {
  custom: {
    50: '#d27263',
    500: '#b33128',
    950: '#000000',
  },
}

SCSS

$custom: #b33128;
$custom-light: #d27263;
$custom-dark: #000000;

JSON

{
  "hex": "#b33128",
  "rgb": {
    "r": 179,
    "g": 49,
    "b": 40
  },
  "hsl": {
    "h": 3.885,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.51219,
    "c": 0.16818,
    "h": 28.5
  },
  "luminance": 0.11934
}

Semantic roles & 50–950 ramp

primary

#B33128

secondary

#6FC2C8

accent

#DCE641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33128

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

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