#427AE0#427AE0

#427AE0 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.4% C 0.166 H 261.2°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#427AE0
RGB	rgb(66, 122, 224)
HSL	hsl(219, 72%, 57%)
HSV	hsv(219, 71%, 88%)
CMYK	cmyk(70.5%, 45.5%, 0%, 12.2%)
CIE-LAB	lab(52.35, 15.41, -57.41)
CIE-LCH	lch(52.35, 59.44, 285.02°)
OKLab	oklab(59.42% -0.0253 -0.1645)
OKLCH	oklch(59.42% 0.166 261.2)
XYZ	xyz(22.6560, 20.4567, 73.2611)
Luminance	0.2046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AE0 #E0A842

analogous

#42C9E0 #427AE0 #5942E0

triadic

#427AE0 #E0427A #7AE042

tetradic

#427AE0 #E042C9 #E0A842 #42E059

square

#427AE0 #E042C9 #E0A842 #42E059

split-complementary

#427AE0 #E05942 #C9E042

monochromatic

#184290 #205AC5 #427AE0 #779FE9 #ABC4F1

Accessibility & contrast

On white

4.12

#427AE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#427AE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AE0

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AE0	#FFFFFF	#000000	##000000
##427AE0	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4685E4

Deuteranopia (green-blind)

#2476DE

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427ae0;
/* rgb */ color: rgb(66, 122, 224);
/* oklch */ color: oklch(59.4% 0.166 261.2);

Tailwind

colors: {
  custom: {
    50: '#899fea',
    500: '#427ae0',
    950: '#000000',
  },
}

SCSS

$custom: #427ae0;
$custom-light: #899fea;
$custom-dark: #000000;

JSON

{
  "hex": "#427ae0",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 224
  },
  "hsl": {
    "h": 218.734,
    "s": 71.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.59421,
    "c": 0.1664,
    "h": 261.2
  },
  "luminance": 0.20459
}

Semantic roles & 50–950 ramp

primary

#427AE0

secondary

#DFC89F

accent

#AE39EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #427AE0

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

Preview Lab → · Contrast checker → · Palette generator →