#C43539#C43539

#C43539 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.8% C 0.180 H 24.0°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#C43539
RGB	rgb(196, 53, 57)
HSL	hsl(358, 57%, 49%)
HSV	hsv(358, 73%, 77%)
CMYK	cmyk(0%, 73%, 70.9%, 23.1%)
CIE-LAB	lab(45.05, 56.25, 31.88)
CIE-LCH	lch(45.05, 64.65, 29.54°)
OKLab	oklab(54.81% 0.1641 0.0732)
OKLCH	oklch(54.81% 0.18 24)
XYZ	xyz(24.7793, 14.5811, 5.3798)
Luminance	0.1458 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43539 #35C4C0

analogous

#C43581 #C43539 #C47935

triadic

#C43539 #39C435 #3539C4

tetradic

#C43539 #81C435 #35C4C0 #7935C4

square

#C43539 #81C435 #35C4C0 #7935C4

split-complementary

#C43539 #35C479 #3581C4

monochromatic

#641B1D #94282B #C43539 #D46265 #E19294

Accessibility & contrast

On white

5.36

#C43539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#C43539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43539

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43539	#FFFFFF	#000000	##FFFFFF
##C43539	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5738

Deuteranopia (green-blind)

#827634

Tritanopia (blue-blind)

#D70038

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43539;
/* rgb */ color: rgb(196, 53, 57);
/* oklch */ color: oklch(54.8% 0.180 24.0);

Tailwind

colors: {
  custom: {
    50: '#de776f',
    500: '#c43539',
    950: '#000000',
  },
}

SCSS

$custom: #c43539;
$custom-light: #de776f;
$custom-dark: #000000;

JSON

{
  "hex": "#c43539",
  "rgb": {
    "r": 196,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 358.322,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54808,
    "c": 0.17968,
    "h": 24
  },
  "luminance": 0.14577
}

Semantic roles & 50–950 ramp

primary

#C43539

secondary

#88CCCB

accent

#E1DC47

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C43539

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

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