#427ED4#427ED4

#427ED4 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.5% C 0.146 H 257.7°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#427ED4
RGB	rgb(66, 126, 212)
HSL	hsl(215, 63%, 55%)
HSV	hsv(215, 69%, 83%)
CMYK	cmyk(68.9%, 40.6%, 0%, 16.9%)
CIE-LAB	lab(52.76, 8.66, -49.98)
CIE-LCH	lch(52.76, 50.72, 279.83°)
OKLab	oklab(59.52% -0.0312 -0.1426)
OKLCH	oklch(59.52% 0.146 257.7)
XYZ	xyz(21.5870, 20.8312, 65.1577)
Luminance	0.2083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ED4 #D49842

analogous

#42C7D4 #427ED4 #4F42D4

triadic

#427ED4 #D4427E #7ED442

tetradic

#427ED4 #D442C7 #D49842 #42D44F

square

#427ED4 #D442C7 #D49842 #42D44F

split-complementary

#427ED4 #D44F42 #C7D442

monochromatic

#1D457F #2860B1 #427ED4 #74A0DF #A6C2EB

Accessibility & contrast

On white

4.06

#427ED4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#427ED4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ED4

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ED4	#FFFFFF	#000000	##000000
##427ED4	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5685D7

Deuteranopia (green-blind)

#3F78D2

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #427ed4;
/* rgb */ color: rgb(66, 126, 212);
/* oklch */ color: oklch(59.5% 0.146 257.7);

Tailwind

colors: {
  custom: {
    50: '#86a2e2',
    500: '#427ed4',
    950: '#000000',
  },
}

SCSS

$custom: #427ed4;
$custom-light: #86a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#427ed4",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 212
  },
  "hsl": {
    "h": 215.342,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59517,
    "c": 0.14593,
    "h": 257.7
  },
  "luminance": 0.20833
}

Semantic roles & 50–950 ramp

primary

#427ED4

secondary

#D8BE9A

accent

#A342E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427ED4

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

Preview Lab → · Contrast checker → · Palette generator →