#CB4339#CB4339

#CB4339 is a mid, vivid red. Relative luminance 0.170; OKLCH L 57.4% C 0.174 H 28.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#CB4339
RGB	rgb(203, 67, 57)
HSL	hsl(4, 58%, 51%)
HSV	hsv(4, 72%, 80%)
CMYK	cmyk(0%, 67%, 71.9%, 20.4%)
CIE-LAB	lab(48.27, 53.17, 35.95)
CIE-LCH	lch(48.27, 64.18, 34.06°)
OKLab	oklab(57.45% 0.1536 0.0817)
OKLCH	oklch(57.45% 0.174 28)
XYZ	xyz(27.3773, 17.0102, 5.7118)
Luminance	0.1701 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4339 #39C1CB

analogous

#CB3978 #CB4339 #CB8C39

triadic

#CB4339 #39CB43 #4339CB

tetradic

#CB4339 #78CB39 #39C1CB #8C39CB

square

#CB4339 #78CB39 #39C1CB #8C39CB

split-complementary

#CB4339 #39CB8C #3978CB

monochromatic

#6D221D #9D3129 #CB4339 #D87169 #E49F9A

Accessibility & contrast

On white

4.77

#CB4339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#CB4339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4339

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4339	#FFFFFF	#000000	##FFFFFF
##CB4339	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696037

Deuteranopia (green-blind)

#8B7E35

Tritanopia (blue-blind)

#DF1C42

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #cb4339;
/* rgb */ color: rgb(203, 67, 57);
/* oklch */ color: oklch(57.4% 0.174 28.0);

Tailwind

colors: {
  custom: {
    50: '#e37f70',
    500: '#cb4339',
    950: '#000000',
  },
}

SCSS

$custom: #cb4339;
$custom-light: #e37f70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4339",
  "rgb": {
    "r": 203,
    "g": 67,
    "b": 57
  },
  "hsl": {
    "h": 4.11,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57447,
    "c": 0.17394,
    "h": 28
  },
  "luminance": 0.17006
}

Semantic roles & 50–950 ramp

primary

#CB4339

secondary

#90CCD0

accent

#D7E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB4339

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

Preview Lab → · Contrast checker → · Palette generator →