#427BE2#427BE2

#427BE2 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.8% C 0.168 H 261.1°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#427BE2
RGB	rgb(66, 123, 226)
HSL	hsl(219, 73%, 57%)
HSV	hsv(219, 71%, 89%)
CMYK	cmyk(70.8%, 45.6%, 0%, 11.4%)
CIE-LAB	lab(52.74, 15.50, -57.90)
CIE-LCH	lch(52.74, 59.94, 284.99°)
OKLab	oklab(59.76% -0.0259 -0.1659)
OKLCH	oklch(59.76% 0.168 261.1)
XYZ	xyz(23.0523, 20.8127, 74.7391)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BE2 #E2A942

analogous

#42CBE2 #427BE2 #5942E2

triadic

#427BE2 #E2427B #7BE242

tetradic

#427BE2 #E242CB #E2A942 #42E259

square

#427BE2 #E242CB #E2A942 #42E259

split-complementary

#427BE2 #E25942 #CBE242

monochromatic

#174393 #1F5BC8 #427BE2 #77A0EA #ACC5F2

Accessibility & contrast

On white

4.07

#427BE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#427BE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BE2

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BE2	#FFFFFF	#000000	##000000
##427BE2	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4686E6

Deuteranopia (green-blind)

#2377E0

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #427be2;
/* rgb */ color: rgb(66, 123, 226);
/* oklch */ color: oklch(59.8% 0.168 261.1);

Tailwind

colors: {
  custom: {
    50: '#89a0ec',
    500: '#427be2',
    950: '#000000',
  },
}

SCSS

$custom: #427be2;
$custom-light: #89a0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#427be2",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 226
  },
  "hsl": {
    "h": 218.625,
    "s": 73.394,
    "l": 57.255
  },
  "oklch": {
    "l": 0.59763,
    "c": 0.16789,
    "h": 261.1
  },
  "luminance": 0.20815
}

Semantic roles & 50–950 ramp

primary

#427BE2

secondary

#E0C99F

accent

#AE38F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #427BE2

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

Preview Lab → · Contrast checker → · Palette generator →