#B33E3E#B33E3E

#B33E3E is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.152 H 23.9°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B33E3E
RGB	rgb(179, 62, 62)
HSL	hsl(0, 49%, 47%)
HSV	hsv(0, 65%, 70%)
CMYK	cmyk(0%, 65.4%, 65.4%, 29.8%)
CIE-LAB	lab(43.33, 47.42, 26.09)
CIE-LCH	lch(43.33, 54.12, 28.81°)
OKLab	oklab(52.97% 0.1393 0.0618)
OKLCH	oklch(52.97% 0.152 23.9)
XYZ	xyz(21.1847, 13.3797, 6.0235)
Luminance	0.1338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E3E #3EB3B3

analogous

#B33E79 #B33E3E #B3793E

triadic

#B33E3E #3EB33E #3E3EB3

tetradic

#B33E3E #79B33E #3EB3B3 #793EB3

square

#B33E3E #79B33E #3EB3B3 #793EB3

split-complementary

#B33E3E #3EB379 #3E79B3

monochromatic

#581F1F #862E2E #B33E3E #CA6565 #D99292

Accessibility & contrast

On white

5.71

#B33E3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B33E3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E3E

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E3E	#FFFFFF	#000000	##FFFFFF
##B33E3E	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573D

Deuteranopia (green-blind)

#7A703B

Tritanopia (blue-blind)

#C4233F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e3e;
/* rgb */ color: rgb(179, 62, 62);
/* oklch */ color: oklch(53.0% 0.152 23.9);

Tailwind

colors: {
  custom: {
    50: '#d07973',
    500: '#b33e3e',
    950: '#000000',
  },
}

SCSS

$custom: #b33e3e;
$custom-light: #d07973;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e3e",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 62
  },
  "hsl": {
    "h": 0,
    "s": 48.548,
    "l": 47.255
  },
  "oklch": {
    "l": 0.52972,
    "c": 0.1524,
    "h": 23.9
  },
  "luminance": 0.13377
}

Semantic roles & 50–950 ramp

primary

#B33E3E

secondary

#88C5C5

accent

#D8D850

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33E3E

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

Preview Lab → · Contrast checker → · Palette generator →