#C33B1F#C33B1F

#C33B1F is a mid, vivid red. Relative luminance 0.148; OKLCH L 54.9% C 0.177 H 33.3°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#C33B1F
RGB	rgb(195, 59, 31)
HSL	hsl(10, 73%, 44%)
HSV	hsv(10, 84%, 76%)
CMYK	cmyk(0%, 69.7%, 84.1%, 23.5%)
CIE-LAB	lab(45.40, 52.75, 46.29)
CIE-LCH	lch(45.40, 70.18, 41.27°)
OKLab	oklab(54.95% 0.1482 0.0974)
OKLCH	oklch(54.95% 0.177 33.3)
XYZ	xyz(24.3199, 14.8327, 2.8785)
Luminance	0.1483 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33B1F #1FA7C3

analogous

#C31F55 #C33B1F #C38D1F

triadic

#C33B1F #1FC33B #3B1FC3

tetradic

#C33B1F #55C31F #1FA7C3 #8D1FC3

square

#C33B1F #55C31F #1FA7C3 #8D1FC3

split-complementary

#C33B1F #1FC38D #1F55C3

monochromatic

#591B0E #8E2B17 #C33B1F #E05A3F #E98874

Accessibility & contrast

On white

5.30

#C33B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#C33B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33B1F

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33B1F	#FFFFFF	#000000	##FFFFFF
##C33B1F	1.00	5.30	3.97	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64581A

Deuteranopia (green-blind)

#857717

Tritanopia (blue-blind)

#D70036

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c33b1f;
/* rgb */ color: rgb(195, 59, 31);
/* oklch */ color: oklch(54.9% 0.177 33.3);

Tailwind

colors: {
  custom: {
    50: '#df795e',
    500: '#c33b1f',
    950: '#000000',
  },
}

SCSS

$custom: #c33b1f;
$custom-light: #df795e;
$custom-dark: #000000;

JSON

{
  "hex": "#c33b1f",
  "rgb": {
    "r": 195,
    "g": 59,
    "b": 31
  },
  "hsl": {
    "h": 10.244,
    "s": 72.566,
    "l": 44.314
  },
  "oklch": {
    "l": 0.54948,
    "c": 0.17731,
    "h": 33.3
  },
  "luminance": 0.14829
}

Semantic roles & 50–950 ramp

primary

#C33B1F

secondary

#6EBFD0

accent

#D0EF39

background

#FFF7F5

surface

#FEEEE9

border

#D6C9C5

text

#170A04

muted

#857C79

Preview Lab

Preview with #C33B1F

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

Preview Lab → · Contrast checker → · Palette generator →