#427BD6#427BD6

#427BD6 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.0% C 0.152 H 259.4°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#427BD6
RGB	rgb(66, 123, 214)
HSL	hsl(217, 64%, 55%)
HSV	hsv(217, 69%, 84%)
CMYK	cmyk(69.2%, 42.5%, 0%, 16.1%)
CIE-LAB	lab(52.04, 11.21, -52.27)
CIE-LCH	lch(52.04, 53.46, 282.11°)
OKLab	oklab(58.99% -0.028 -0.1493)
OKLCH	oklch(58.99% 0.152 259.4)
XYZ	xyz(21.4630, 20.1770, 66.3687)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BD6 #D69D42

analogous

#42C5D6 #427BD6 #5342D6

triadic

#427BD6 #D6427B #7BD642

tetradic

#427BD6 #D642C5 #D69D42 #42D653

square

#427BD6 #D642C5 #D69D42 #42D653

split-complementary

#427BD6 #D65342 #C5D642

monochromatic

#1C4382 #275DB4 #427BD6 #749EE1 #A7C1EC

Accessibility & contrast

On white

4.17

#427BD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#427BD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BD6

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BD6	#FFFFFF	#000000	##000000
##427BD6	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F83DA

Deuteranopia (green-blind)

#3676D4

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427bd6;
/* rgb */ color: rgb(66, 123, 214);
/* oklch */ color: oklch(59.0% 0.152 259.4);

Tailwind

colors: {
  custom: {
    50: '#87a0e3',
    500: '#427bd6',
    950: '#000000',
  },
}

SCSS

$custom: #427bd6;
$custom-light: #87a0e3;
$custom-dark: #000000;

JSON

{
  "hex": "#427bd6",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 214
  },
  "hsl": {
    "h": 216.892,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.5899,
    "c": 0.15194,
    "h": 259.4
  },
  "luminance": 0.20179
}

Semantic roles & 50–950 ramp

primary

#427BD6

secondary

#D9C19B

accent

#A740E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #427BD6

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

Preview Lab → · Contrast checker → · Palette generator →