#C43F38#C43F38

#C43F38 is a mid, vivid red. Relative luminance 0.156; OKLCH L 55.8% C 0.171 H 27.1°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#C43F38
RGB	rgb(196, 63, 56)
HSL	hsl(3, 56%, 49%)
HSV	hsv(3, 71%, 77%)
CMYK	cmyk(0%, 67.9%, 71.4%, 23.1%)
CIE-LAB	lab(46.42, 52.42, 34.06)
CIE-LCH	lch(46.42, 62.51, 33.01°)
OKLab	oklab(55.82% 0.1518 0.0778)
OKLCH	oklch(55.82% 0.171 27.1)
XYZ	xyz(25.2590, 15.5800, 5.4178)
Luminance	0.1558 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43F38 #38BDC4

analogous

#C43877 #C43F38 #C48538

triadic

#C43F38 #38C43F #3F38C4

tetradic

#C43F38 #77C438 #38BDC4 #8538C4

square

#C43F38 #77C438 #38BDC4 #8538C4

split-complementary

#C43F38 #38C485 #3877C4

monochromatic

#65201D #94302A #C43F38 #D36B66 #E19996

Accessibility & contrast

On white

5.10

#C43F38 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#C43F38 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43F38

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43F38	#FFFFFF	#000000	##FFFFFF
##C43F38	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)

#645C36

Deuteranopia (green-blind)

#867934

Tritanopia (blue-blind)

#D7173F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c43f38;
/* rgb */ color: rgb(196, 63, 56);
/* oklch */ color: oklch(55.8% 0.171 27.1);

Tailwind

colors: {
  custom: {
    50: '#de7c6f',
    500: '#c43f38',
    950: '#000000',
  },
}

SCSS

$custom: #c43f38;
$custom-light: #de7c6f;
$custom-dark: #000000;

JSON

{
  "hex": "#c43f38",
  "rgb": {
    "r": 196,
    "g": 63,
    "b": 56
  },
  "hsl": {
    "h": 3,
    "s": 55.556,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55822,
    "c": 0.17055,
    "h": 27.1
  },
  "luminance": 0.15576
}

Semantic roles & 50–950 ramp

primary

#C43F38

secondary

#8CC9CC

accent

#D7DF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43F38

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

Preview Lab → · Contrast checker → · Palette generator →