#C43840#C43840

#C43840 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.2% C 0.176 H 22.1°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#C43840
RGB	rgb(196, 56, 64)
HSL	hsl(357, 56%, 49%)
HSV	hsv(357, 71%, 77%)
CMYK	cmyk(0%, 71.4%, 67.3%, 23.1%)
CIE-LAB	lab(45.55, 55.52, 28.31)
CIE-LCH	lch(45.55, 62.32, 27.02°)
OKLab	oklab(55.21% 0.1633 0.0664)
OKLCH	oklch(55.21% 0.176 22.1)
XYZ	xyz(25.1072, 14.9380, 6.4108)
Luminance	0.1493 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43840 #38C4BC

analogous

#C43886 #C43840 #C47638

triadic

#C43840 #40C438 #3840C4

tetradic

#C43840 #86C438 #38C4BC #7638C4

square

#C43840 #86C438 #38C4BC #7638C4

split-complementary

#C43840 #38C476 #3886C4

monochromatic

#651D21 #942A30 #C43840 #D3666C #E1969A

Accessibility & contrast

On white

5.27

#C43840 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#C43840 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43840

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43840	#FFFFFF	#000000	##FFFFFF
##C43840	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F593F

Deuteranopia (green-blind)

#83773C

Tritanopia (blue-blind)

#D7043C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43840;
/* rgb */ color: rgb(196, 56, 64);
/* oklch */ color: oklch(55.2% 0.176 22.1);

Tailwind

colors: {
  custom: {
    50: '#de7875',
    500: '#c43840',
    950: '#000000',
  },
}

SCSS

$custom: #c43840;
$custom-light: #de7875;
$custom-dark: #000000;

JSON

{
  "hex": "#c43840",
  "rgb": {
    "r": 196,
    "g": 56,
    "b": 64
  },
  "hsl": {
    "h": 356.571,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55209,
    "c": 0.17625,
    "h": 22.1
  },
  "luminance": 0.14934
}

Semantic roles & 50–950 ramp

primary

#C43840

secondary

#8CCCC9

accent

#DFD649

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C43840

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

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