#CB3B57#CB3B57

#CB3B57 is a mid, vivid red. Relative luminance 0.165; OKLCH L 57.1% C 0.180 H 13.8°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#CB3B57
RGB	rgb(203, 59, 87)
HSL	hsl(348, 58%, 51%)
HSV	hsv(348, 71%, 80%)
CMYK	cmyk(0%, 70.9%, 57.1%, 20.4%)
CIE-LAB	lab(47.65, 58.03, 17.34)
CIE-LCH	lch(47.65, 60.56, 16.64°)
OKLab	oklab(57.14% 0.1747 0.0431)
OKLCH	oklch(57.14% 0.18 13.8)
XYZ	xyz(27.9155, 16.5165, 10.7330)
Luminance	0.1651 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3B57 #3BCBAF

analogous

#CB3B9F #CB3B57 #CB673B

triadic

#CB3B57 #57CB3B #3B57CB

tetradic

#CB3B57 #9FCB3B #3BCBAF #673BCB

square

#CB3B57 #9FCB3B #3BCBAF #673BCB

split-complementary

#CB3B57 #3BCB67 #3B9FCB

monochromatic

#6E1D2D #9F2A41 #CB3B57 #D86B80 #E59CAA

Accessibility & contrast

On white

4.88

#CB3B57 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#CB3B57 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3B57

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3B57	#FFFFFF	#000000	##FFFFFF
##CB3B57	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605E57

Deuteranopia (green-blind)

#857C53

Tritanopia (blue-blind)

#DE1646

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cb3b57;
/* rgb */ color: rgb(203, 59, 87);
/* oklch */ color: oklch(57.1% 0.180 13.8);

Tailwind

colors: {
  custom: {
    50: '#e27b86',
    500: '#cb3b57',
    950: '#000000',
  },
}

SCSS

$custom: #cb3b57;
$custom-light: #e27b86;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3b57",
  "rgb": {
    "r": 203,
    "g": 59,
    "b": 87
  },
  "hsl": {
    "h": 348.333,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57139,
    "c": 0.17994,
    "h": 13.8
  },
  "luminance": 0.16513
}

Semantic roles & 50–950 ramp

primary

#CB3B57

secondary

#91D1C4

accent

#E1C347

background

#FEF7F8

surface

#FDEEEF

border

#D5C9CA

text

#170A0B

muted

#857C7C

Preview Lab

Preview with #CB3B57

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

Preview Lab → · Contrast checker → · Palette generator →