#CB3D3D#CB3D3D

#CB3D3D is a mid, vivid red. Relative luminance 0.164; OKLCH L 56.9% C 0.179 H 24.9°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#CB3D3D
RGB	rgb(203, 61, 61)
HSL	hsl(0, 58%, 52%)
HSV	hsv(0, 70%, 80%)
CMYK	cmyk(0%, 70%, 70%, 20.4%)
CIE-LAB	lab(47.46, 55.72, 32.70)
CIE-LCH	lch(47.46, 64.60, 30.41°)
OKLab	oklab(56.86% 0.1624 0.0753)
OKLCH	oklch(56.86% 0.179 24.9)
XYZ	xyz(27.1426, 16.3749, 6.1454)
Luminance	0.1637 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3D3D #3DCBCB

analogous

#CB3D84 #CB3D3D #CB843D

triadic

#CB3D3D #3DCB3D #3D3DCB

tetradic

#CB3D3D #84CB3D #3DCBCB #843DCB

square

#CB3D3D #84CB3D #3DCBCB #843DCB

split-complementary

#CB3D3D #3DCB84 #3D84CB

monochromatic

#701E1E #A02B2B #CB3D3D #D86D6D #E59E9E

Accessibility & contrast

On white

4.91

#CB3D3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#CB3D3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3D3D

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3D3D	#FFFFFF	#000000	##FFFFFF
##CB3D3D	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655D3C

Deuteranopia (green-blind)

#897C38

Tritanopia (blue-blind)

#DF0B3F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cb3d3d;
/* rgb */ color: rgb(203, 61, 61);
/* oklch */ color: oklch(56.9% 0.179 24.9);

Tailwind

colors: {
  custom: {
    50: '#e37c72',
    500: '#cb3d3d',
    950: '#000000',
  },
}

SCSS

$custom: #cb3d3d;
$custom-light: #e37c72;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3d3d",
  "rgb": {
    "r": 203,
    "g": 61,
    "b": 61
  },
  "hsl": {
    "h": 0,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.56857,
    "c": 0.17902,
    "h": 24.9
  },
  "luminance": 0.16371
}

Semantic roles & 50–950 ramp

primary

#CB3D3D

secondary

#93D1D1

accent

#E1E147

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB3D3D

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

Preview Lab → · Contrast checker → · Palette generator →