#B33D35#B33D35

#B33D35 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.155 H 27.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B33D35
RGB	rgb(179, 61, 53)
HSL	hsl(4, 54%, 45%)
HSV	hsv(4, 70%, 70%)
CMYK	cmyk(0%, 65.9%, 70.4%, 29.8%)
CIE-LAB	lab(43.03, 47.35, 31.08)
CIE-LCH	lch(43.03, 56.64, 33.28°)
OKLab	oklab(52.71% 0.1373 0.0715)
OKLCH	oklch(52.71% 0.155 27.5)
XYZ	xyz(20.9040, 13.1812, 4.8110)
Luminance	0.1318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D35 #35ABB3

analogous

#B3356C #B33D35 #B37C35

triadic

#B33D35 #35B33D #3D35B3

tetradic

#B33D35 #6CB335 #35ABB3 #7C35B3

square

#B33D35 #6CB335 #35ABB3 #7C35B3

split-complementary

#B33D35 #35B37C #356CB3

monochromatic

#551D19 #842D27 #B33D35 #CD5F58 #DB8C87

Accessibility & contrast

On white

5.78

#B33D35 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B33D35 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D35

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D35	#FFFFFF	#000000	##FFFFFF
##B33D35	1.00	5.78	3.64	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5533

Deuteranopia (green-blind)

#7B6F31

Tritanopia (blue-blind)

#C51F3C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33d35;
/* rgb */ color: rgb(179, 61, 53);
/* oklch */ color: oklch(52.7% 0.155 27.5);

Tailwind

colors: {
  custom: {
    50: '#d1796c',
    500: '#b33d35',
    950: '#000000',
  },
}

SCSS

$custom: #b33d35;
$custom-light: #d1796c;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d35",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 53
  },
  "hsl": {
    "h": 3.81,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52708,
    "c": 0.15478,
    "h": 27.5
  },
  "luminance": 0.13178
}

Semantic roles & 50–950 ramp

primary

#B33D35

secondary

#7FC1C5

accent

#D4DE4A

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33D35

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

Preview Lab → · Contrast checker → · Palette generator →