#CB3A40#CB3A40

#CB3A40 is a mid, vivid red. Relative luminance 0.161; OKLCH L 56.6% C 0.181 H 23.0°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#CB3A40
RGB	rgb(203, 58, 64)
HSL	hsl(358, 58%, 51%)
HSV	hsv(358, 71%, 80%)
CMYK	cmyk(0%, 71.4%, 68.5%, 20.4%)
CIE-LAB	lab(47.10, 56.98, 30.51)
CIE-LCH	lch(47.10, 64.63, 28.16°)
OKLab	oklab(56.6% 0.167 0.071)
OKLCH	oklch(56.6% 0.181 23)
XYZ	xyz(27.0700, 16.0968, 6.5311)
Luminance	0.1609 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3A40 #3ACBC5

analogous

#CB3A88 #CB3A40 #CB7C3A

triadic

#CB3A40 #40CB3A #3A40CB

tetradic

#CB3A40 #88CB3A #3ACBC5 #7C3ACB

square

#CB3A40 #88CB3A #3ACBC5 #7C3ACB

split-complementary

#CB3A40 #3ACB7C #3A88CB

monochromatic

#6E1D20 #9E2A2F #CB3A40 #D86A6F #E59B9E

Accessibility & contrast

On white

4.98

#CB3A40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#CB3A40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3A40

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3A40	#FFFFFF	#000000	##FFFFFF
##CB3A40	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635C3F

Deuteranopia (green-blind)

#877B3B

Tritanopia (blue-blind)

#DF003E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3a40;
/* rgb */ color: rgb(203, 58, 64);
/* oklch */ color: oklch(56.6% 0.181 23.0);

Tailwind

colors: {
  custom: {
    50: '#e37a75',
    500: '#cb3a40',
    950: '#000000',
  },
}

SCSS

$custom: #cb3a40;
$custom-light: #e37a75;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3a40",
  "rgb": {
    "r": 203,
    "g": 58,
    "b": 64
  },
  "hsl": {
    "h": 357.517,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56602,
    "c": 0.18149,
    "h": 23
  },
  "luminance": 0.16093
}

Semantic roles & 50–950 ramp

primary

#CB3A40

secondary

#90D0CE

accent

#E1DB46

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB3A40

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

Preview Lab → · Contrast checker → · Palette generator →