#C43F3A#C43F3A

#C43F3A is a mid, vivid red. Relative luminance 0.156; OKLCH L 55.9% C 0.170 H 26.4°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#C43F3A
RGB	rgb(196, 63, 58)
HSL	hsl(2, 54%, 50%)
HSV	hsv(2, 70%, 77%)
CMYK	cmyk(0%, 67.9%, 70.4%, 23.1%)
CIE-LAB	lab(46.45, 52.51, 32.93)
CIE-LCH	lch(46.45, 61.98, 32.09°)
OKLab	oklab(55.85% 0.1525 0.0757)
OKLCH	oklch(55.85% 0.17 26.4)
XYZ	xyz(25.3089, 15.5999, 5.6806)
Luminance	0.1560 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43F3A #3ABFC4

analogous

#C43A7A #C43F3A #C4843A

triadic

#C43F3A #3AC43F #3F3AC4

tetradic

#C43F3A #7AC43A #3ABFC4 #843AC4

square

#C43F3A #7AC43A #3ABFC4 #843AC4

split-complementary

#C43F3A #3AC484 #3A7AC4

monochromatic

#66211E #95302C #C43F3A #D36D69 #E09B98

Accessibility & contrast

On white

5.10

#C43F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#C43F3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43F3A

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43F3A	#FFFFFF	#000000	##FFFFFF
##C43F3A	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C38

Deuteranopia (green-blind)

#857936

Tritanopia (blue-blind)

#D7183F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c43f3a;
/* rgb */ color: rgb(196, 63, 58);
/* oklch */ color: oklch(55.9% 0.170 26.4);

Tailwind

colors: {
  custom: {
    50: '#de7c70',
    500: '#c43f3a',
    950: '#000000',
  },
}

SCSS

$custom: #c43f3a;
$custom-light: #de7c70;
$custom-dark: #000000;

JSON

{
  "hex": "#c43f3a",
  "rgb": {
    "r": 196,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 2.174,
    "s": 54.331,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55851,
    "c": 0.17025,
    "h": 26.4
  },
  "luminance": 0.15596
}

Semantic roles & 50–950 ramp

primary

#C43F3A

secondary

#8ECACC

accent

#D8DE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43F3A

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

Preview Lab → · Contrast checker → · Palette generator →