#4270DF#4270DF

#4270DF is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.3% C 0.177 H 264.5°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4270DF
RGB	rgb(66, 112, 223)
HSL	hsl(222, 71%, 57%)
HSV	hsv(222, 70%, 87%)
CMYK	cmyk(70.4%, 49.8%, 0%, 12.5%)
CIE-LAB	lab(49.58, 21.28, -61.30)
CIE-LCH	lch(49.58, 64.89, 289.15°)
OKLab	oklab(57.28% -0.0169 -0.1761)
OKLCH	oklch(57.28% 0.177 264.5)
XYZ	xyz(21.3555, 18.0721, 72.1605)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270DF #DFB142

analogous

#42BFDF #4270DF #6342DF

triadic

#4270DF #DF4270 #70DF42

tetradic

#4270DF #DF42BF #DFB142 #42DF63

square

#4270DF #DF42BF #DFB142 #42DF63

split-complementary

#4270DF #DF6342 #BFDF42

monochromatic

#183B8E #2150C3 #4270DF #7698E8 #ABBFF1

Accessibility & contrast

On white

4.55

#4270DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#4270DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4270DF

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270DF	#FFFFFF	#000000	##000000
##4270DF	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E7DE3

Deuteranopia (green-blind)

#006FDD

Tritanopia (blue-blind)

#008A9D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4270df;
/* rgb */ color: rgb(66, 112, 223);
/* oklch */ color: oklch(57.3% 0.177 264.5);

Tailwind

colors: {
  custom: {
    50: '#8998ea',
    500: '#4270df',
    950: '#000000',
  },
}

SCSS

$custom: #4270df;
$custom-light: #8998ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4270df",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 223
  },
  "hsl": {
    "h": 222.42,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.57284,
    "c": 0.17687,
    "h": 264.5
  },
  "luminance": 0.18074
}

Semantic roles & 50–950 ramp

primary

#4270DF

secondary

#DFCC9E

accent

#B93AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4270DF

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

Preview Lab → · Contrast checker → · Palette generator →