#4272BD#4272BD

#4272BD is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.5% C 0.128 H 259.0°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#4272BD
RGB	rgb(66, 114, 189)
HSL	hsl(217, 48%, 50%)
HSV	hsv(217, 65%, 74%)
CMYK	cmyk(65.1%, 39.7%, 0%, 25.9%)
CIE-LAB	lab(48.09, 7.91, -44.28)
CIE-LCH	lch(48.09, 44.98, 280.12°)
OKLab	oklab(55.48% -0.0245 -0.126)
OKLCH	oklch(55.48% 0.128 259)
XYZ	xyz(17.4461, 16.8653, 50.4702)
Luminance	0.1687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4272BD #BD8D42

analogous

#42B0BD #4272BD #4F42BD

triadic

#4272BD #BD4272 #72BD42

tetradic

#4272BD #BD42B0 #BD8D42 #42BD4F

square

#4272BD #BD42B0 #BD8D42 #42BD4F

split-complementary

#4272BD #BD4F42 #B0BD42

monochromatic

#223B62 #325790 #4272BD #6F94CD #9DB6DD

Accessibility & contrast

On white

4.80

#4272BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#4272BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4272BD

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4272BD	#FFFFFF	#000000	##FFFFFF
##4272BD	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5078C0

Deuteranopia (green-blind)

#3E6DBB

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4272bd;
/* rgb */ color: rgb(66, 114, 189);
/* oklch */ color: oklch(55.5% 0.128 259.0);

Tailwind

colors: {
  custom: {
    50: '#829ad1',
    500: '#4272bd',
    950: '#000000',
  },
}

SCSS

$custom: #4272bd;
$custom-light: #829ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#4272bd",
  "rgb": {
    "r": 66,
    "g": 114,
    "b": 189
  },
  "hsl": {
    "h": 216.585,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.55476,
    "c": 0.12838,
    "h": 259
  },
  "luminance": 0.16867
}

Semantic roles & 50–950 ramp

primary

#4272BD

secondary

#C9B392

accent

#A350D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4272BD

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

Preview Lab → · Contrast checker → · Palette generator →