#427DD4#427DD4

#427DD4 is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.3% C 0.147 H 258.1°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#427DD4
RGB	rgb(66, 125, 212)
HSL	hsl(216, 63%, 55%)
HSV	hsv(216, 69%, 83%)
CMYK	cmyk(68.9%, 41%, 0%, 16.9%)
CIE-LAB	lab(52.48, 9.28, -50.43)
CIE-LCH	lch(52.48, 51.27, 280.42°)
OKLab	oklab(59.3% -0.0303 -0.1439)
OKLCH	oklch(59.3% 0.147 258.1)
XYZ	xyz(21.4597, 20.5767, 65.1153)
Luminance	0.2058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DD4 #D49942

analogous

#42C6D4 #427DD4 #5042D4

triadic

#427DD4 #D4427D #7DD442

tetradic

#427DD4 #D442C6 #D49942 #42D450

square

#427DD4 #D442C6 #D49942 #42D450

split-complementary

#427DD4 #D45042 #C6D442

monochromatic

#1D447F #285FB1 #427DD4 #749FDF #A6C2EB

Accessibility & contrast

On white

4.10

#427DD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#427DD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DD4

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DD4	#FFFFFF	#000000	##000000
##427DD4	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5485D7

Deuteranopia (green-blind)

#3D77D2

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427dd4;
/* rgb */ color: rgb(66, 125, 212);
/* oklch */ color: oklch(59.3% 0.147 258.1);

Tailwind

colors: {
  custom: {
    50: '#86a2e2',
    500: '#427dd4',
    950: '#000000',
  },
}

SCSS

$custom: #427dd4;
$custom-light: #86a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#427dd4",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 212
  },
  "hsl": {
    "h": 215.753,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59298,
    "c": 0.14704,
    "h": 258.1
  },
  "luminance": 0.20579
}

Semantic roles & 50–950 ramp

primary

#427DD4

secondary

#D8BF9A

accent

#A442E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427DD4

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

Preview Lab → · Contrast checker → · Palette generator →