#C43D39#C43D39

#C43D39 is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.6% C 0.172 H 26.2°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#C43D39
RGB	rgb(196, 61, 57)
HSL	hsl(2, 55%, 50%)
HSV	hsv(2, 71%, 77%)
CMYK	cmyk(0%, 68.9%, 70.9%, 23.1%)
CIE-LAB	lab(46.14, 53.26, 33.15)
CIE-LCH	lch(46.14, 62.74, 31.90°)
OKLab	oklab(55.62% 0.1547 0.076)
OKLCH	oklch(55.62% 0.172 26.2)
XYZ	xyz(25.1750, 15.3724, 5.5117)
Luminance	0.1537 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43D39 #39C0C4

analogous

#C4397A #C43D39 #C48339

triadic

#C43D39 #39C43D #3D39C4

tetradic

#C43D39 #7AC439 #39C0C4 #8339C4

square

#C43D39 #7AC439 #39C0C4 #8339C4

split-complementary

#C43D39 #39C483 #397AC4

monochromatic

#651F1D #952E2B #C43D39 #D36A67 #E19997

Accessibility & contrast

On white

5.15

#C43D39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#C43D39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43D39

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43D39	#FFFFFF	#000000	##FFFFFF
##C43D39	1.00	5.15	4.07	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B37

Deuteranopia (green-blind)

#857835

Tritanopia (blue-blind)

#D7123D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43d39;
/* rgb */ color: rgb(196, 61, 57);
/* oklch */ color: oklch(55.6% 0.172 26.2);

Tailwind

colors: {
  custom: {
    50: '#de7b70',
    500: '#c43d39',
    950: '#000000',
  },
}

SCSS

$custom: #c43d39;
$custom-light: #de7b70;
$custom-dark: #000000;

JSON

{
  "hex": "#c43d39",
  "rgb": {
    "r": 196,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 1.727,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55618,
    "c": 0.17231,
    "h": 26.2
  },
  "luminance": 0.15369
}

Semantic roles & 50–950 ramp

primary

#C43D39

secondary

#8DCACC

accent

#DADE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43D39

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

Preview Lab → · Contrast checker → · Palette generator →