#C43B33#C43B33

#C43B33 is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.3% C 0.175 H 27.7°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C43B33
RGB	rgb(196, 59, 51)
HSL	hsl(3, 59%, 48%)
HSV	hsv(3, 74%, 77%)
CMYK	cmyk(0%, 69.9%, 74%, 23.1%)
CIE-LAB	lab(45.78, 53.77, 36.19)
CIE-LCH	lch(45.78, 64.81, 33.94°)
OKLab	oklab(55.32% 0.155 0.0814)
OKLCH	oklch(55.32% 0.175 27.7)
XYZ	xyz(24.9293, 15.1064, 4.7345)
Luminance	0.1510 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43B33 #33BCC4

analogous

#C43374 #C43B33 #C48333

triadic

#C43B33 #33C43B #3B33C4

tetradic

#C43B33 #74C433 #33BCC4 #8333C4

square

#C43B33 #74C433 #33BCC4 #8333C4

split-complementary

#C43B33 #33C483 #3374C4

monochromatic

#631E1A #932C26 #C43B33 #D5655F #E2948F

Accessibility & contrast

On white

5.22

#C43B33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#C43B33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43B33

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43B33	#FFFFFF	#000000	##FFFFFF
##C43B33	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625931

Deuteranopia (green-blind)

#85772E

Tritanopia (blue-blind)

#D8083A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43b33;
/* rgb */ color: rgb(196, 59, 51);
/* oklch */ color: oklch(55.3% 0.175 27.7);

Tailwind

colors: {
  custom: {
    50: '#de7a6b',
    500: '#c43b33',
    950: '#000000',
  },
}

SCSS

$custom: #c43b33;
$custom-light: #de7a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#c43b33",
  "rgb": {
    "r": 196,
    "g": 59,
    "b": 51
  },
  "hsl": {
    "h": 3.31,
    "s": 58.704,
    "l": 48.431
  },
  "oklch": {
    "l": 0.55324,
    "c": 0.17506,
    "h": 27.7
  },
  "luminance": 0.15103
}

Semantic roles & 50–950 ramp

primary

#C43B33

secondary

#86C9CD

accent

#D9E246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43B33

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

Preview Lab → · Contrast checker → · Palette generator →