#B33027#B33027

#B33027 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.1% C 0.169 H 28.5°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#B33027
RGB	rgb(179, 48, 39)
HSL	hsl(4, 64%, 43%)
HSV	hsv(4, 78%, 70%)
CMYK	cmyk(0%, 73.2%, 78.2%, 29.8%)
CIE-LAB	lab(40.97, 51.90, 36.82)
CIE-LCH	lch(40.97, 63.64, 35.35°)
OKLab	oklab(51.11% 0.1487 0.0808)
OKLCH	oklch(51.11% 0.169 28.5)
XYZ	xyz(20.0159, 11.8472, 3.1519)
Luminance	0.1184 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33027 #27AAB3

analogous

#B32764 #B33027 #B37627

triadic

#B33027 #27B330 #3027B3

tetradic

#B33027 #64B327 #27AAB3 #7627B3

square

#B33027 #64B327 #27AAB3 #7627B3

split-complementary

#B33027 #27B376 #2764B3

monochromatic

#4E1511 #81231C #B33027 #D64B41 #E17B74

Accessibility & contrast

On white

6.23

#B33027 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B33027 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33027

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33027	#FFFFFF	#000000	##FFFFFF
##B33027	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)

#574E25

Deuteranopia (green-blind)

#786B21

Tritanopia (blue-blind)

#C5002F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33027;
/* rgb */ color: rgb(179, 48, 39);
/* oklch */ color: oklch(51.1% 0.169 28.5);

Tailwind

colors: {
  custom: {
    50: '#d37262',
    500: '#b33027',
    950: '#000000',
  },
}

SCSS

$custom: #b33027;
$custom-light: #d37262;
$custom-dark: #000000;

JSON

{
  "hex": "#b33027",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 39
  },
  "hsl": {
    "h": 3.857,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51109,
    "c": 0.16919,
    "h": 28.5
  },
  "luminance": 0.11844
}

Semantic roles & 50–950 ramp

primary

#B33027

secondary

#6EC2C8

accent

#DDE741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B33027

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

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