#C43B39#C43B39

#C43B39 is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.4% C 0.174 H 25.6°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#C43B39
RGB	rgb(196, 59, 57)
HSL	hsl(1, 55%, 50%)
HSV	hsv(1, 71%, 77%)
CMYK	cmyk(0%, 69.9%, 70.9%, 23.1%)
CIE-LAB	lab(45.86, 54.04, 32.82)
CIE-LCH	lch(45.86, 63.22, 31.27°)
OKLab	oklab(55.41% 0.1571 0.0752)
OKLCH	oklch(55.41% 0.174 25.6)
XYZ	xyz(25.0702, 15.1628, 5.4767)
Luminance	0.1516 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43B39 #39C2C4

analogous

#C4397D #C43B39 #C48039

triadic

#C43B39 #39C43B #3B39C4

tetradic

#C43B39 #7DC439 #39C2C4 #8039C4

square

#C43B39 #7DC439 #39C2C4 #8039C4

split-complementary

#C43B39 #39C480 #397DC4

monochromatic

#651E1D #952D2B #C43B39 #D36967 #E19897

Accessibility & contrast

On white

5.21

#C43B39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#C43B39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43B39

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43B39	#FFFFFF	#000000	##FFFFFF
##C43B39	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A37

Deuteranopia (green-blind)

#847735

Tritanopia (blue-blind)

#D70B3C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43b39;
/* rgb */ color: rgb(196, 59, 57);
/* oklch */ color: oklch(55.4% 0.174 25.6);

Tailwind

colors: {
  custom: {
    50: '#de7a6f',
    500: '#c43b39',
    950: '#000000',
  },
}

SCSS

$custom: #c43b39;
$custom-light: #de7a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#c43b39",
  "rgb": {
    "r": 196,
    "g": 59,
    "b": 57
  },
  "hsl": {
    "h": 0.863,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55406,
    "c": 0.1742,
    "h": 25.6
  },
  "luminance": 0.15159
}

Semantic roles & 50–950 ramp

primary

#C43B39

secondary

#8DCBCC

accent

#DCDE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43B39

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

Preview Lab → · Contrast checker → · Palette generator →