#C43A37#C43A37

#C43A37 is a mid, vivid red. Relative luminance 0.150; OKLCH L 55.3% C 0.175 H 26.0°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#C43A37
RGB	rgb(196, 58, 55)
HSL	hsl(1, 56%, 49%)
HSV	hsv(1, 72%, 77%)
CMYK	cmyk(0%, 70.4%, 71.9%, 23.1%)
CIE-LAB	lab(45.69, 54.32, 33.79)
CIE-LCH	lch(45.69, 63.98, 31.88°)
OKLab	oklab(55.27% 0.1576 0.077)
OKLCH	oklch(55.27% 0.175 26)
XYZ	xyz(24.9704, 15.0414, 5.2021)
Luminance	0.1504 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43A37 #37C1C4

analogous

#C4377A #C43A37 #C48137

triadic

#C43A37 #37C43A #3A37C4

tetradic

#C43A37 #7AC437 #37C1C4 #8137C4

square

#C43A37 #7AC437 #37C1C4 #8137C4

split-complementary

#C43A37 #37C481 #377AC4

monochromatic

#641E1C #942C2A #C43A37 #D46765 #E19694

Accessibility & contrast

On white

5.24

#C43A37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#C43A37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43A37

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43A37	#FFFFFF	#000000	##FFFFFF
##C43A37	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615935

Deuteranopia (green-blind)

#847732

Tritanopia (blue-blind)

#D7063B

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43a37;
/* rgb */ color: rgb(196, 58, 55);
/* oklch */ color: oklch(55.3% 0.175 26.0);

Tailwind

colors: {
  custom: {
    50: '#de796e',
    500: '#c43a37',
    950: '#000000',
  },
}

SCSS

$custom: #c43a37;
$custom-light: #de796e;
$custom-dark: #000000;

JSON

{
  "hex": "#c43a37",
  "rgb": {
    "r": 196,
    "g": 58,
    "b": 55
  },
  "hsl": {
    "h": 1.277,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55274,
    "c": 0.1754,
    "h": 26
  },
  "luminance": 0.15038
}

Semantic roles & 50–950 ramp

primary

#C43A37

secondary

#8BCBCC

accent

#DCDF48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43A37

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

Preview Lab → · Contrast checker → · Palette generator →