#427AD4#427AD4

#427AD4 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 58.6% C 0.150 H 259.5°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#427AD4
RGB	rgb(66, 122, 212)
HSL	hsl(217, 63%, 55%)
HSV	hsv(217, 69%, 83%)
CMYK	cmyk(68.9%, 42.5%, 0%, 16.9%)
CIE-LAB	lab(51.64, 11.12, -51.77)
CIE-LCH	lch(51.64, 52.95, 282.12°)
OKLab	oklab(58.65% -0.0275 -0.1479)
OKLCH	oklch(58.65% 0.15 259.5)
XYZ	xyz(21.0857, 19.8286, 64.9906)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AD4 #D49C42

analogous

#42C3D4 #427AD4 #5342D4

triadic

#427AD4 #D4427A #7AD442

tetradic

#427AD4 #D442C3 #D49C42 #42D453

square

#427AD4 #D442C3 #D49C42 #42D453

split-complementary

#427AD4 #D45342 #C3D442

monochromatic

#1D427F #285DB1 #427AD4 #749DDF #A6C0EB

Accessibility & contrast

On white

4.23

#427AD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#427AD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AD4

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AD4	#FFFFFF	#000000	##000000
##427AD4	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F82D7

Deuteranopia (green-blind)

#3675D2

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427ad4;
/* rgb */ color: rgb(66, 122, 212);
/* oklch */ color: oklch(58.6% 0.150 259.5);

Tailwind

colors: {
  custom: {
    50: '#869fe2',
    500: '#427ad4',
    950: '#000000',
  },
}

SCSS

$custom: #427ad4;
$custom-light: #869fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#427ad4",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 212
  },
  "hsl": {
    "h": 216.986,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.58648,
    "c": 0.15041,
    "h": 259.5
  },
  "luminance": 0.19831
}

Semantic roles & 50–950 ramp

primary

#427AD4

secondary

#D8C09A

accent

#A742E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427AD4

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

Preview Lab → · Contrast checker → · Palette generator →