#B33E3D#B33E3D

#B33E3D is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.153 H 24.4°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#B33E3D
RGB	rgb(179, 62, 61)
HSL	hsl(1, 49%, 47%)
HSV	hsv(1, 66%, 70%)
CMYK	cmyk(0%, 65.4%, 65.9%, 29.8%)
CIE-LAB	lab(43.31, 47.36, 26.67)
CIE-LCH	lch(43.31, 54.35, 29.38°)
OKLab	oklab(52.96% 0.1389 0.063)
OKLCH	oklch(52.96% 0.153 24.4)
XYZ	xyz(21.1575, 13.3688, 5.8803)
Luminance	0.1337 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E3D #3DB2B3

analogous

#B33D77 #B33E3D #B3793D

triadic

#B33E3D #3DB33E #3E3DB3

tetradic

#B33E3D #77B33D #3DB2B3 #793DB3

square

#B33E3D #77B33D #3DB2B3 #793DB3

split-complementary

#B33E3D #3DB379 #3D77B3

monochromatic

#581E1E #852E2D #B33E3D #CA6463 #D99291

Accessibility & contrast

On white

5.72

#B33E3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B33E3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E3D

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E3D	#FFFFFF	#000000	##FFFFFF
##B33E3D	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563C

Deuteranopia (green-blind)

#7B703A

Tritanopia (blue-blind)

#C4223F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e3d;
/* rgb */ color: rgb(179, 62, 61);
/* oklch */ color: oklch(53.0% 0.153 24.4);

Tailwind

colors: {
  custom: {
    50: '#d17972',
    500: '#b33e3d',
    950: '#000000',
  },
}

SCSS

$custom: #b33e3d;
$custom-light: #d17972;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e3d",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 61
  },
  "hsl": {
    "h": 0.508,
    "s": 49.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.52955,
    "c": 0.15253,
    "h": 24.4
  },
  "luminance": 0.13366
}

Semantic roles & 50–950 ramp

primary

#B33E3D

secondary

#87C4C5

accent

#D8D94F

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33E3D

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

Preview Lab → · Contrast checker → · Palette generator →