#CB3B45#CB3B45

#CB3B45 is a mid, vivid red. Relative luminance 0.163; OKLCH L 56.8% C 0.180 H 21.4°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#CB3B45
RGB	rgb(203, 59, 69)
HSL	hsl(356, 58%, 51%)
HSV	hsv(356, 71%, 80%)
CMYK	cmyk(0%, 70.9%, 66%, 20.4%)
CIE-LAB	lab(47.31, 56.88, 27.79)
CIE-LCH	lch(47.31, 63.31, 26.04°)
OKLab	oklab(56.78% 0.1677 0.0656)
OKLCH	oklch(56.78% 0.18 21.4)
XYZ	xyz(27.2696, 16.2581, 7.3313)
Luminance	0.1625 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3B45 #3BCBC1

analogous

#CB3B8D #CB3B45 #CB793B

triadic

#CB3B45 #45CB3B #3B45CB

tetradic

#CB3B45 #8DCB3B #3BCBC1 #793BCB

square

#CB3B45 #8DCB3B #3BCBC1 #793BCB

split-complementary

#CB3B45 #3BCB79 #3B8DCB

monochromatic

#6E1D23 #9F2A32 #CB3B45 #D86B73 #E59CA1

Accessibility & contrast

On white

4.94

#CB3B45 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#CB3B45 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3B45

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3B45	#FFFFFF	#000000	##FFFFFF
##CB3B45	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635D44

Deuteranopia (green-blind)

#877B41

Tritanopia (blue-blind)

#DF0940

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3b45;
/* rgb */ color: rgb(203, 59, 69);
/* oklch */ color: oklch(56.8% 0.180 21.4);

Tailwind

colors: {
  custom: {
    50: '#e37b78',
    500: '#cb3b45',
    950: '#000000',
  },
}

SCSS

$custom: #cb3b45;
$custom-light: #e37b78;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3b45",
  "rgb": {
    "r": 203,
    "g": 59,
    "b": 69
  },
  "hsl": {
    "h": 355.833,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56783,
    "c": 0.18012,
    "h": 21.4
  },
  "luminance": 0.16254
}

Semantic roles & 50–950 ramp

primary

#CB3B45

secondary

#91D1CC

accent

#E1D747

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A09

muted

#857C7B

Preview Lab

Preview with #CB3B45

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

Preview Lab → · Contrast checker → · Palette generator →