#C33B28#C33B28

#C33B28 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.0% C 0.176 H 31.1°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#C33B28
RGB	rgb(195, 59, 40)
HSL	hsl(7, 66%, 46%)
HSV	hsv(7, 79%, 76%)
CMYK	cmyk(0%, 69.7%, 79.5%, 23.5%)
CIE-LAB	lab(45.48, 53.02, 41.85)
CIE-LCH	lch(45.48, 67.55, 38.28°)
OKLab	oklab(55.03% 0.1506 0.0908)
OKLCH	oklch(55.03% 0.176 31.1)
XYZ	xyz(24.4555, 14.8869, 3.5928)
Luminance	0.1488 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33B28 #28B0C3

analogous

#C32862 #C33B28 #C38828

triadic

#C33B28 #28C33B #3B28C3

tetradic

#C33B28 #62C328 #28B0C3 #8828C3

square

#C33B28 #62C328 #28B0C3 #8828C3

split-complementary

#C33B28 #28C388 #2862C3

monochromatic

#5D1C13 #902C1E #C33B28 #DB5F4E #E58D80

Accessibility & contrast

On white

5.28

#C33B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#C33B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33B28

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33B28	#FFFFFF	#000000	##FFFFFF
##C33B28	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635925

Deuteranopia (green-blind)

#857722

Tritanopia (blue-blind)

#D70338

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c33b28;
/* rgb */ color: rgb(195, 59, 40);
/* oklch */ color: oklch(55.0% 0.176 31.1);

Tailwind

colors: {
  custom: {
    50: '#de7964',
    500: '#c33b28',
    950: '#000000',
  },
}

SCSS

$custom: #c33b28;
$custom-light: #de7964;
$custom-dark: #000000;

JSON

{
  "hex": "#c33b28",
  "rgb": {
    "r": 195,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 7.355,
    "s": 65.957,
    "l": 46.078
  },
  "oklch": {
    "l": 0.55028,
    "c": 0.17582,
    "h": 31.1
  },
  "luminance": 0.14883
}

Semantic roles & 50–950 ramp

primary

#C33B28

secondary

#79C3CE

accent

#D4E93F

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A05

muted

#857C7A

Preview Lab

Preview with #C33B28

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

Preview Lab → · Contrast checker → · Palette generator →