#CB3C3F#CB3C3F

#CB3C3F is a mid, vivid red. Relative luminance 0.163; OKLCH L 56.8% C 0.180 H 23.9°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#CB3C3F
RGB	rgb(203, 60, 63)
HSL	hsl(359, 58%, 52%)
HSV	hsv(359, 70%, 80%)
CMYK	cmyk(0%, 70.4%, 69%, 20.4%)
CIE-LAB	lab(47.35, 56.19, 31.40)
CIE-LCH	lch(47.35, 64.37, 29.20°)
OKLab	oklab(56.79% 0.1643 0.0728)
OKLCH	oklch(56.79% 0.18 23.9)
XYZ	xyz(27.1446, 16.2911, 6.4168)
Luminance	0.1629 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3C3F #3CCBC8

analogous

#CB3C87 #CB3C3F #CB813C

triadic

#CB3C3F #3FCB3C #3C3FCB

tetradic

#CB3C3F #87CB3C #3CCBC8 #813CCB

square

#CB3C3F #87CB3C #3CCBC8 #813CCB

split-complementary

#CB3C3F #3CCB81 #3C87CB

monochromatic

#6F1E1F #9F2A2D #CB3C3F #D86C6F #E59D9E

Accessibility & contrast

On white

4.93

#CB3C3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#CB3C3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3C3F

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3C3F	#FFFFFF	#000000	##FFFFFF
##CB3C3F	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645D3E

Deuteranopia (green-blind)

#887C3B

Tritanopia (blue-blind)

#DF083F

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3c3f;
/* rgb */ color: rgb(203, 60, 63);
/* oklch */ color: oklch(56.8% 0.180 23.9);

Tailwind

colors: {
  custom: {
    50: '#e37b74',
    500: '#cb3c3f',
    950: '#000000',
  },
}

SCSS

$custom: #cb3c3f;
$custom-light: #e37b74;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3c3f",
  "rgb": {
    "r": 203,
    "g": 60,
    "b": 63
  },
  "hsl": {
    "h": 358.741,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56785,
    "c": 0.17973,
    "h": 23.9
  },
  "luminance": 0.16287
}

Semantic roles & 50–950 ramp

primary

#CB3C3F

secondary

#92D1D0

accent

#E1DE47

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB3C3F

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

Preview Lab → · Contrast checker → · Palette generator →