#4270DB#4270DB

#4270DB is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.0% C 0.172 H 264.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4270DB
RGB	rgb(66, 112, 219)
HSL	hsl(222, 68%, 56%)
HSV	hsv(222, 70%, 86%)
CMYK	cmyk(69.9%, 48.9%, 0%, 14.1%)
CIE-LAB	lab(49.32, 19.85, -59.45)
CIE-LCH	lch(49.32, 62.68, 288.46°)
OKLab	oklab(57% -0.0174 -0.1706)
OKLCH	oklch(57% 0.172 264.2)
XYZ	xyz(20.8226, 17.8589, 69.3538)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4270DB #DBAD42

analogous

#42BCDB #4270DB #6042DB

triadic

#4270DB #DB4270 #70DB42

tetradic

#4270DB #DB42BC #DBAD42 #42DB60

square

#4270DB #DB42BC #DBAD42 #42DB60

split-complementary

#4270DB #DB6042 #BCDB42

monochromatic

#1A3B89 #2452BC #4270DB #7597E5 #A9BEEF

Accessibility & contrast

On white

4.59

#4270DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4270DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4270DB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4270DB	#FFFFFF	#000000	##FFFFFF
##4270DB	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#347DDF

Deuteranopia (green-blind)

#006FD9

Tritanopia (blue-blind)

#00899B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4270db;
/* rgb */ color: rgb(66, 112, 219);
/* oklch */ color: oklch(57.0% 0.172 264.2);

Tailwind

colors: {
  custom: {
    50: '#8898e7',
    500: '#4270db',
    950: '#000000',
  },
}

SCSS

$custom: #4270db;
$custom-light: #8898e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4270db",
  "rgb": {
    "r": 66,
    "g": 112,
    "b": 219
  },
  "hsl": {
    "h": 221.961,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.57004,
    "c": 0.17151,
    "h": 264.2
  },
  "luminance": 0.17861
}

Semantic roles & 50–950 ramp

primary

#4270DB

secondary

#DCC99D

accent

#B73DEB

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4270DB

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

Preview Lab → · Contrast checker → · Palette generator →