#C43A3F#C43A3F

#C43A3F is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.4% C 0.174 H 23.0°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C43A3F
RGB	rgb(196, 58, 63)
HSL	hsl(358, 54%, 50%)
HSV	hsv(358, 70%, 77%)
CMYK	cmyk(0%, 70.4%, 67.9%, 23.1%)
CIE-LAB	lab(45.80, 54.72, 29.22)
CIE-LCH	lch(45.80, 62.03, 28.10°)
OKLab	oklab(55.4% 0.1605 0.0683)
OKLCH	oklch(55.4% 0.174 23)
XYZ	xyz(25.1779, 15.1245, 6.2952)
Luminance	0.1512 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43A3F #3AC4BF

analogous

#C43A84 #C43A3F #C47A3A

triadic

#C43A3F #3FC43A #3A3FC4

tetradic

#C43A3F #84C43A #3AC4BF #7A3AC4

square

#C43A3F #84C43A #3AC4BF #7A3AC4

split-complementary

#C43A3F #3AC47A #3A84C4

monochromatic

#661E21 #952C30 #C43A3F #D3696D #E0989B

Accessibility & contrast

On white

5.22

#C43A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#C43A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43A3F

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43A3F	#FFFFFF	#000000	##FFFFFF
##C43A3F	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)

#615A3E

Deuteranopia (green-blind)

#83773B

Tritanopia (blue-blind)

#D70B3D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43a3f;
/* rgb */ color: rgb(196, 58, 63);
/* oklch */ color: oklch(55.4% 0.174 23.0);

Tailwind

colors: {
  custom: {
    50: '#de7974',
    500: '#c43a3f',
    950: '#000000',
  },
}

SCSS

$custom: #c43a3f;
$custom-light: #de7974;
$custom-dark: #000000;

JSON

{
  "hex": "#c43a3f",
  "rgb": {
    "r": 196,
    "g": 58,
    "b": 63
  },
  "hsl": {
    "h": 357.826,
    "s": 54.331,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55395,
    "c": 0.17445,
    "h": 23
  },
  "luminance": 0.15121
}

Semantic roles & 50–950 ramp

primary

#C43A3F

secondary

#8ECCCA

accent

#DED84A

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C43A3F

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

Preview Lab → · Contrast checker → · Palette generator →