#C43831#C43831

#C43831 is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.0% C 0.178 H 27.5°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#C43831
RGB	rgb(196, 56, 49)
HSL	hsl(3, 60%, 48%)
HSV	hsv(3, 75%, 77%)
CMYK	cmyk(0%, 71.4%, 75%, 23.1%)
CIE-LAB	lab(45.34, 54.81, 36.84)
CIE-LCH	lch(45.34, 66.04, 33.90°)
OKLab	oklab(54.99% 0.1579 0.0823)
OKLCH	oklch(54.99% 0.178 27.5)
XYZ	xyz(24.7363, 14.7896, 4.4573)
Luminance	0.1479 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43831 #31BDC4

analogous

#C43173 #C43831 #C48131

triadic

#C43831 #31C438 #3831C4

tetradic

#C43831 #73C431 #31BDC4 #8131C4

square

#C43831 #73C431 #31BDC4 #8131C4

split-complementary

#C43831 #31C481 #3173C4

monochromatic

#621C19 #932A25 #C43831 #D6625C #E2918D

Accessibility & contrast

On white

5.31

#C43831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#C43831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43831

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43831	#FFFFFF	#000000	##FFFFFF
##C43831	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61582F

Deuteranopia (green-blind)

#84762C

Tritanopia (blue-blind)

#D80038

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43831;
/* rgb */ color: rgb(196, 56, 49);
/* oklch */ color: oklch(55.0% 0.178 27.5);

Tailwind

colors: {
  custom: {
    50: '#df786a',
    500: '#c43831',
    950: '#000000',
  },
}

SCSS

$custom: #c43831;
$custom-light: #df786a;
$custom-dark: #000000;

JSON

{
  "hex": "#c43831",
  "rgb": {
    "r": 196,
    "g": 56,
    "b": 49
  },
  "hsl": {
    "h": 2.857,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54991,
    "c": 0.17804,
    "h": 27.5
  },
  "luminance": 0.14786
}

Semantic roles & 50–950 ramp

primary

#C43831

secondary

#84C9CD

accent

#DCE345

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C43831

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

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