#B03333#B03333

#B03333 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.162 H 25.0°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#B03333
RGB	rgb(176, 51, 51)
HSL	hsl(0, 55%, 45%)
HSV	hsv(0, 71%, 69%)
CMYK	cmyk(0%, 71%, 71%, 31%)
CIE-LAB	lab(40.96, 50.32, 29.68)
CIE-LCH	lch(40.96, 58.42, 30.53°)
OKLab	oklab(51.04% 0.1466 0.0682)
OKLCH	oklch(51.04% 0.162 25)
XYZ	xyz(19.6880, 11.8397, 4.3799)
Luminance	0.1184 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03333 #33B0B0

analogous

#B03372 #B03333 #B07233

triadic

#B03333 #33B033 #3333B0

tetradic

#B03333 #72B033 #33B0B0 #7233B0

square

#B03333 #72B033 #33B0B0 #7233B0

split-complementary

#B03333 #33B072 #3372B0

monochromatic

#511818 #812525 #B03333 #CD5353 #DB8282

Accessibility & contrast

On white

6.24

#B03333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B03333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03333

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03333	#FFFFFF	#000000	##FFFFFF
##B03333	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F32

Deuteranopia (green-blind)

#766A2F

Tritanopia (blue-blind)

#C20535

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03333;
/* rgb */ color: rgb(176, 51, 51);
/* oklch */ color: oklch(51.0% 0.162 25.0);

Tailwind

colors: {
  custom: {
    50: '#cf736b',
    500: '#b03333',
    950: '#000000',
  },
}

SCSS

$custom: #b03333;
$custom-light: #cf736b;
$custom-dark: #000000;

JSON

{
  "hex": "#b03333",
  "rgb": {
    "r": 176,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51044,
    "c": 0.16169,
    "h": 25
  },
  "luminance": 0.11837
}

Semantic roles & 50–950 ramp

primary

#B03333

secondary

#7BC4C4

accent

#DEDE49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B03333

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

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