#4272DF#4272DF

#4272DF is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.7% C 0.174 H 263.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4272DF
RGB	rgb(66, 114, 223)
HSL	hsl(222, 71%, 57%)
HSV	hsv(222, 70%, 87%)
CMYK	cmyk(70.4%, 48.9%, 0%, 12.5%)
CIE-LAB	lab(50.12, 20.03, -60.43)
CIE-LCH	lch(50.12, 63.67, 288.34°)
OKLab	oklab(57.69% -0.0186 -0.1735)
OKLCH	oklch(57.69% 0.174 263.9)
XYZ	xyz(21.5787, 18.5183, 72.2349)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4272DF #DFAF42

analogous

#42C1DF #4272DF #6142DF

triadic

#4272DF #DF4272 #72DF42

tetradic

#4272DF #DF42C1 #DFAF42 #42DF61

square

#4272DF #DF42C1 #DFAF42 #42DF61

split-complementary

#4272DF #DF6142 #C1DF42

monochromatic

#183C8E #2152C3 #4272DF #7699E8 #ABC0F1

Accessibility & contrast

On white

4.46

#4272DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#4272DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4272DF

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4272DF	#FFFFFF	#000000	##000000
##4272DF	1.00	4.46	4.70	4.70
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#347FE3

Deuteranopia (green-blind)

#0070DD

Tritanopia (blue-blind)

#008C9E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4272df;
/* rgb */ color: rgb(66, 114, 223);
/* oklch */ color: oklch(57.7% 0.174 263.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4272df",
  "rgb": {
    "r": 66,
    "g": 114,
    "b": 223
  },
  "hsl": {
    "h": 221.656,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.57692,
    "c": 0.17448,
    "h": 263.9
  },
  "luminance": 0.18521
}

Semantic roles & 50–950 ramp

primary

#4272DF

secondary

#DFCB9E

accent

#B73AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4272DF

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

Preview Lab → · Contrast checker → · Palette generator →