#C43940#C43940

#C43940 is a mid, vivid red. Relative luminance 0.150; OKLCH L 55.3% C 0.175 H 22.4°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#C43940
RGB	rgb(196, 57, 64)
HSL	hsl(357, 55%, 50%)
HSV	hsv(357, 71%, 77%)
CMYK	cmyk(0%, 70.9%, 67.3%, 23.1%)
CIE-LAB	lab(45.68, 55.15, 28.48)
CIE-LCH	lch(45.68, 62.07, 27.31°)
OKLab	oklab(55.31% 0.1621 0.0668)
OKLCH	oklch(55.31% 0.175 22.4)
XYZ	xyz(25.1562, 15.0359, 6.4271)
Luminance	0.1503 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43940 #39C4BD

analogous

#C43986 #C43940 #C47739

triadic

#C43940 #40C439 #3940C4

tetradic

#C43940 #86C439 #39C4BD #7739C4

square

#C43940 #86C439 #39C4BD #7739C4

split-complementary

#C43940 #39C477 #3986C4

monochromatic

#651D21 #952B31 #C43940 #D3676D #E1979A

Accessibility & contrast

On white

5.24

#C43940 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#C43940 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43940

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43940	#FFFFFF	#000000	##FFFFFF
##C43940	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)

#60593F

Deuteranopia (green-blind)

#83773C

Tritanopia (blue-blind)

#D7083D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43940;
/* rgb */ color: rgb(196, 57, 64);
/* oklch */ color: oklch(55.3% 0.175 22.4);

Tailwind

colors: {
  custom: {
    50: '#de7975',
    500: '#c43940',
    950: '#000000',
  },
}

SCSS

$custom: #c43940;
$custom-light: #de7975;
$custom-dark: #000000;

JSON

{
  "hex": "#c43940",
  "rgb": {
    "r": 196,
    "g": 57,
    "b": 64
  },
  "hsl": {
    "h": 356.978,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55309,
    "c": 0.17531,
    "h": 22.4
  },
  "luminance": 0.15032
}

Semantic roles & 50–950 ramp

primary

#C43940

secondary

#8DCCC9

accent

#DED74A

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C43940

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

Preview Lab → · Contrast checker → · Palette generator →