#C43D3B#C43D3B

#C43D3B is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.6% C 0.172 H 25.4°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#C43D3B
RGB	rgb(196, 61, 59)
HSL	hsl(1, 54%, 50%)
HSV	hsv(1, 70%, 77%)
CMYK	cmyk(0%, 68.9%, 69.9%, 23.1%)
CIE-LAB	lab(46.17, 53.36, 32.02)
CIE-LCH	lch(46.17, 62.23, 30.97°)
OKLab	oklab(55.65% 0.1554 0.0738)
OKLCH	oklch(55.65% 0.172 25.4)
XYZ	xyz(25.2258, 15.3927, 5.7796)
Luminance	0.1539 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43D3B #3BC2C4

analogous

#C43B7D #C43D3B #C4823B

triadic

#C43D3B #3BC43D #3D3BC4

tetradic

#C43D3B #7DC43B #3BC2C4 #823BC4

square

#C43D3B #7DC43B #3BC2C4 #823BC4

split-complementary

#C43D3B #3BC482 #3B7DC4

monochromatic

#66201F #952E2D #C43D3B #D26C6A #E09A99

Accessibility & contrast

On white

5.15

#C43D3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#C43D3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43D3B

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43D3B	#FFFFFF	#000000	##FFFFFF
##C43D3B	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B3A

Deuteranopia (green-blind)

#857837

Tritanopia (blue-blind)

#D7133E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43d3b;
/* rgb */ color: rgb(196, 61, 59);
/* oklch */ color: oklch(55.6% 0.172 25.4);

Tailwind

colors: {
  custom: {
    50: '#de7b71',
    500: '#c43d3b',
    950: '#000000',
  },
}

SCSS

$custom: #c43d3b;
$custom-light: #de7b71;
$custom-dark: #000000;

JSON

{
  "hex": "#c43d3b",
  "rgb": {
    "r": 196,
    "g": 61,
    "b": 59
  },
  "hsl": {
    "h": 0.876,
    "s": 53.725,
    "l": 50
  },
  "oklch": {
    "l": 0.55647,
    "c": 0.17204,
    "h": 25.4
  },
  "luminance": 0.15389
}

Semantic roles & 50–950 ramp

primary

#C43D3B

secondary

#8FCBCC

accent

#DBDD4B

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43D3B

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

Preview Lab → · Contrast checker → · Palette generator →