#4272E0#4272E0

#4272E0 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.8% C 0.176 H 264.0°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4272E0
RGB	rgb(66, 114, 224)
HSL	hsl(222, 72%, 57%)
HSV	hsv(222, 71%, 88%)
CMYK	cmyk(70.5%, 49.1%, 0%, 12.2%)
CIE-LAB	lab(50.18, 20.39, -60.89)
CIE-LCH	lch(50.18, 64.22, 288.51°)
OKLab	oklab(57.76% -0.0184 -0.1748)
OKLCH	oklch(57.76% 0.176 264)
XYZ	xyz(21.7139, 18.5724, 72.9470)
Luminance	0.1857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4272E0 #E0B042

analogous

#42C1E0 #4272E0 #6142E0

triadic

#4272E0 #E04272 #72E042

tetradic

#4272E0 #E042C1 #E0B042 #42E061

square

#4272E0 #E042C1 #E0B042 #42E061

split-complementary

#4272E0 #E06142 #C1E042

monochromatic

#183C90 #2052C5 #4272E0 #7799E9 #ABC0F1

Accessibility & contrast

On white

4.45

#4272E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4272E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4272E0

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4272E0	#FFFFFF	#000000	##000000
##4272E0	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#337FE4

Deuteranopia (green-blind)

#0071DE

Tritanopia (blue-blind)

#008C9E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4272e0;
/* rgb */ color: rgb(66, 114, 224);
/* oklch */ color: oklch(57.8% 0.176 264.0);

Tailwind

colors: {
  custom: {
    50: '#8999ea',
    500: '#4272e0',
    950: '#000000',
  },
}

SCSS

$custom: #4272e0;
$custom-light: #8999ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4272e0",
  "rgb": {
    "r": 66,
    "g": 114,
    "b": 224
  },
  "hsl": {
    "h": 221.772,
    "s": 71.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.57762,
    "c": 0.17581,
    "h": 264
  },
  "luminance": 0.18575
}

Semantic roles & 50–950 ramp

primary

#4272E0

secondary

#DFCC9F

accent

#B739EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4272E0

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

Preview Lab → · Contrast checker → · Palette generator →