#C43F31#C43F31

#C43F31 is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.7% C 0.172 H 29.5°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#C43F31
RGB	rgb(196, 63, 49)
HSL	hsl(6, 60%, 48%)
HSV	hsv(6, 75%, 77%)
CMYK	cmyk(0%, 67.9%, 75%, 23.1%)
CIE-LAB	lab(46.33, 52.11, 37.92)
CIE-LCH	lch(46.33, 64.45, 36.05°)
OKLab	oklab(55.73% 0.1494 0.0847)
OKLCH	oklch(55.73% 0.172 29.5)
XYZ	xyz(25.0996, 15.5162, 4.5784)
Luminance	0.1551 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43F31 #31B6C4

analogous

#C4316D #C43F31 #C48831

triadic

#C43F31 #31C43F #3F31C4

tetradic

#C43F31 #6DC431 #31B6C4 #8831C4

square

#C43F31 #6DC431 #31B6C4 #8831C4

split-complementary

#C43F31 #31C488 #316DC4

monochromatic

#622019 #932F25 #C43F31 #D6685C #E2958D

Accessibility & contrast

On white

5.12

#C43F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#C43F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43F31

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43F31	#FFFFFF	#000000	##FFFFFF
##C43F31	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655B2E

Deuteranopia (green-blind)

#86782C

Tritanopia (blue-blind)

#D8153D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c43f31;
/* rgb */ color: rgb(196, 63, 49);
/* oklch */ color: oklch(55.7% 0.172 29.5);

Tailwind

colors: {
  custom: {
    50: '#de7c6a',
    500: '#c43f31',
    950: '#000000',
  },
}

SCSS

$custom: #c43f31;
$custom-light: #de7c6a;
$custom-dark: #000000;

JSON

{
  "hex": "#c43f31",
  "rgb": {
    "r": 196,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 5.714,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.55731,
    "c": 0.17171,
    "h": 29.5
  },
  "luminance": 0.15513
}

Semantic roles & 50–950 ramp

primary

#C43F31

secondary

#84C6CD

accent

#D4E345

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C43F31

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

Preview Lab → · Contrast checker → · Palette generator →