#CB3B34#CB3B34

#CB3B34 is a mid, vivid red. Relative luminance 0.161; OKLCH L 56.5% C 0.182 H 27.4°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#CB3B34
RGB	rgb(203, 59, 52)
HSL	hsl(3, 59%, 50%)
HSV	hsv(3, 74%, 80%)
CMYK	cmyk(0%, 70.9%, 74.4%, 20.4%)
CIE-LAB	lab(47.07, 56.06, 37.42)
CIE-LCH	lch(47.07, 67.40, 33.72°)
OKLab	oklab(56.53% 0.1616 0.0838)
OKLCH	oklch(56.53% 0.182 27.4)
XYZ	xyz(26.8154, 16.0764, 4.9392)
Luminance	0.1607 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3B34 #34C4CB

analogous

#CB3479 #CB3B34 #CB8634

triadic

#CB3B34 #34CB3B #3B34CB

tetradic

#CB3B34 #79CB34 #34C4CB #8634CB

square

#CB3B34 #79CB34 #34C4CB #8634CB

split-complementary

#CB3B34 #34CB86 #3479CB

monochromatic

#6A1F1B #9A2D28 #CB3B34 #D76A65 #E49995

Accessibility & contrast

On white

4.98

#CB3B34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#CB3B34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3B34

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3B34	#FFFFFF	#000000	##FFFFFF
##CB3B34	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C32

Deuteranopia (green-blind)

#897B2F

Tritanopia (blue-blind)

#DF003B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3b34;
/* rgb */ color: rgb(203, 59, 52);
/* oklch */ color: oklch(56.5% 0.182 27.4);

Tailwind

colors: {
  custom: {
    50: '#e47a6c',
    500: '#cb3b34',
    950: '#000000',
  },
}

SCSS

$custom: #cb3b34;
$custom-light: #e47a6c;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3b34",
  "rgb": {
    "r": 203,
    "g": 59,
    "b": 52
  },
  "hsl": {
    "h": 2.781,
    "s": 59.216,
    "l": 50
  },
  "oklch": {
    "l": 0.5653,
    "c": 0.18206,
    "h": 27.4
  },
  "luminance": 0.16072
}

Semantic roles & 50–950 ramp

primary

#CB3B34

secondary

#8CCCCF

accent

#DBE245

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3B34

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

Preview Lab → · Contrast checker → · Palette generator →