#C23333#C23333

#C23333 is a mid, vivid red. Relative luminance 0.141; OKLCH L 54.2% C 0.180 H 25.6°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#C23333
RGB	rgb(194, 51, 51)
HSL	hsl(0, 58%, 48%)
HSV	hsv(0, 74%, 76%)
CMYK	cmyk(0%, 73.7%, 73.7%, 23.9%)
CIE-LAB	lab(44.35, 56.05, 34.47)
CIE-LCH	lch(44.35, 65.81, 31.59°)
OKLab	oklab(54.19% 0.1625 0.0777)
OKLCH	oklch(54.19% 0.18 25.6)
XYZ	xyz(24.0323, 14.0797, 4.5836)
Luminance	0.1408 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C23333 #33C2C2

analogous

#C2337A #C23333 #C27A33

triadic

#C23333 #33C233 #3333C2

tetradic

#C23333 #7AC233 #33C2C2 #7A33C2

square

#C23333 #7AC233 #33C2C2 #7A33C2

split-complementary

#C23333 #33C27A #337AC2

monochromatic

#611A1A #922626 #C23333 #D55E5E #E18E8E

Accessibility & contrast

On white

5.50

#C23333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#C23333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C23333

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C23333	#FFFFFF	#000000	##FFFFFF
##C23333	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5531

Deuteranopia (green-blind)

#81742E

Tritanopia (blue-blind)

#D50035

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #c23333;
/* rgb */ color: rgb(194, 51, 51);
/* oklch */ color: oklch(54.2% 0.180 25.6);

Tailwind

colors: {
  custom: {
    50: '#dd766b',
    500: '#c23333',
    950: '#000000',
  },
}

SCSS

$custom: #c23333;
$custom-light: #dd766b;
$custom-dark: #000000;

JSON

{
  "hex": "#c23333",
  "rgb": {
    "r": 194,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 58.367,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54187,
    "c": 0.18011,
    "h": 25.6
  },
  "luminance": 0.14076
}

Semantic roles & 50–950 ramp

primary

#C23333

secondary

#85CCCC

accent

#E2E246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C23333

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

Preview Lab → · Contrast checker → · Palette generator →