#CB3E3A#CB3E3A

#CB3E3A is a mid, vivid red. Relative luminance 0.164; OKLCH L 56.9% C 0.178 H 26.2°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#CB3E3A
RGB	rgb(203, 62, 58)
HSL	hsl(2, 58%, 51%)
HSV	hsv(2, 71%, 80%)
CMYK	cmyk(0%, 69.5%, 71.4%, 20.4%)
CIE-LAB	lab(47.56, 55.19, 34.55)
CIE-LCH	lch(47.56, 65.12, 32.05°)
OKLab	oklab(56.92% 0.1601 0.0789)
OKLCH	oklch(56.92% 0.178 26.2)
XYZ	xyz(27.1179, 16.4513, 5.7497)
Luminance	0.1645 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3E3A #3AC7CB

analogous

#CB3A7E #CB3E3A #CB863A

triadic

#CB3E3A #3ACB3E #3E3ACB

tetradic

#CB3E3A #7ECB3A #3AC7CB #863ACB

square

#CB3E3A #7ECB3A #3AC7CB #863ACB

split-complementary

#CB3E3A #3ACB86 #3A7ECB

monochromatic

#6E1F1D #9E2D2A #CB3E3A #D86D6A #E59D9B

Accessibility & contrast

On white

4.90

#CB3E3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#CB3E3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3E3A

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3E3A	#FFFFFF	#000000	##FFFFFF
##CB3E3A	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665D38

Deuteranopia (green-blind)

#897C35

Tritanopia (blue-blind)

#DF0E3F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cb3e3a;
/* rgb */ color: rgb(203, 62, 58);
/* oklch */ color: oklch(56.9% 0.178 26.2);

Tailwind

colors: {
  custom: {
    50: '#e37c70',
    500: '#cb3e3a',
    950: '#000000',
  },
}

SCSS

$custom: #cb3e3a;
$custom-light: #e37c70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3e3a",
  "rgb": {
    "r": 203,
    "g": 62,
    "b": 58
  },
  "hsl": {
    "h": 1.655,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56918,
    "c": 0.17849,
    "h": 26.2
  },
  "luminance": 0.16447
}

Semantic roles & 50–950 ramp

primary

#CB3E3A

secondary

#90CFD0

accent

#DDE146

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3E3A

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

Preview Lab → · Contrast checker → · Palette generator →