#CB4738#CB4738

#CB4738 is a mid, vivid red. Relative luminance 0.175; OKLCH L 57.9% C 0.170 H 29.6°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#CB4738
RGB	rgb(203, 71, 56)
HSL	hsl(6, 59%, 51%)
HSV	hsv(6, 72%, 80%)
CMYK	cmyk(0%, 65%, 72.4%, 20.4%)
CIE-LAB	lab(48.87, 51.46, 37.19)
CIE-LCH	lch(48.87, 63.50, 35.86°)
OKLab	oklab(57.89% 0.148 0.0842)
OKLCH	oklch(57.89% 0.17 29.6)
XYZ	xyz(27.5986, 17.4925, 5.6637)
Luminance	0.1749 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4738 #38BCCB

analogous

#CB3873 #CB4738 #CB9038

triadic

#CB4738 #38CB47 #4738CB

tetradic

#CB4738 #73CB38 #38BCCB #9038CB

square

#CB4738 #73CB38 #38BCCB #9038CB

split-complementary

#CB4738 #38CB90 #3873CB

monochromatic

#6C241C #9D3529 #CB4738 #D87469 #E4A199

Accessibility & contrast

On white

4.67

#CB4738 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#CB4738 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4738

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4738	#FFFFFF	#000000	##FFFFFF
##CB4738	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C6236

Deuteranopia (green-blind)

#8D7F34

Tritanopia (blue-blind)

#DF2444

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #cb4738;
/* rgb */ color: rgb(203, 71, 56);
/* oklch */ color: oklch(57.9% 0.170 29.6);

Tailwind

colors: {
  custom: {
    50: '#e3816f',
    500: '#cb4738',
    950: '#000000',
  },
}

SCSS

$custom: #cb4738;
$custom-light: #e3816f;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4738",
  "rgb": {
    "r": 203,
    "g": 71,
    "b": 56
  },
  "hsl": {
    "h": 6.122,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57894,
    "c": 0.17028,
    "h": 29.6
  },
  "luminance": 0.17489
}

Semantic roles & 50–950 ramp

primary

#CB4738

secondary

#8FC9D0

accent

#D2E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4738

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

Preview Lab → · Contrast checker → · Palette generator →