#C43B3B#C43B3B

#C43B3B is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.4% C 0.174 H 24.8°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#C43B3B
RGB	rgb(196, 59, 59)
HSL	hsl(0, 54%, 50%)
HSV	hsv(0, 70%, 77%)
CMYK	cmyk(0%, 69.9%, 69.9%, 23.1%)
CIE-LAB	lab(45.88, 54.13, 31.68)
CIE-LCH	lch(45.88, 62.72, 30.34°)
OKLab	oklab(55.44% 0.1578 0.0731)
OKLCH	oklch(55.44% 0.174 24.8)
XYZ	xyz(25.1211, 15.1832, 5.7447)
Luminance	0.1518 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43B3B #3BC4C4

analogous

#C43B80 #C43B3B #C4803B

triadic

#C43B3B #3BC43B #3B3BC4

tetradic

#C43B3B #80C43B #3BC4C4 #7F3BC4

square

#C43B3B #80C43B #3BC4C4 #7F3BC4

split-complementary

#C43B3B #3BC480 #3B7FC4

monochromatic

#661F1F #952D2D #C43B3B #D26A6A #E09999

Accessibility & contrast

On white

5.20

#C43B3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#C43B3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43B3B

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43B3B	#FFFFFF	#000000	##FFFFFF
##C43B3B	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A3A

Deuteranopia (green-blind)

#847737

Tritanopia (blue-blind)

#D70D3D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43b3b;
/* rgb */ color: rgb(196, 59, 59);
/* oklch */ color: oklch(55.4% 0.174 24.8);

Tailwind

colors: {
  custom: {
    50: '#de7a71',
    500: '#c43b3b',
    950: '#000000',
  },
}

SCSS

$custom: #c43b3b;
$custom-light: #de7a71;
$custom-dark: #000000;

JSON

{
  "hex": "#c43b3b",
  "rgb": {
    "r": 196,
    "g": 59,
    "b": 59
  },
  "hsl": {
    "h": 0,
    "s": 53.725,
    "l": 50
  },
  "oklch": {
    "l": 0.55435,
    "c": 0.17394,
    "h": 24.8
  },
  "luminance": 0.15179
}

Semantic roles & 50–950 ramp

primary

#C43B3B

secondary

#8FCCCC

accent

#DDDD4B

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43B3B

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

Preview Lab → · Contrast checker → · Palette generator →