#427CD4#427CD4

#427CD4 is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.1% C 0.148 H 258.6°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#427CD4
RGB	rgb(66, 124, 212)
HSL	hsl(216, 63%, 55%)
HSV	hsv(216, 69%, 83%)
CMYK	cmyk(68.9%, 41.5%, 0%, 16.9%)
CIE-LAB	lab(52.20, 9.89, -50.88)
CIE-LCH	lch(52.20, 51.83, 281.00°)
OKLab	oklab(59.08% -0.0293 -0.1452)
OKLCH	oklch(59.08% 0.148 258.6)
XYZ	xyz(21.3338, 20.3248, 65.0733)
Luminance	0.2033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CD4 #D49A42

analogous

#42C5D4 #427CD4 #5142D4

triadic

#427CD4 #D4427C #7CD442

tetradic

#427CD4 #D442C5 #D49A42 #42D451

square

#427CD4 #D442C5 #D49A42 #42D451

split-complementary

#427CD4 #D45142 #C5D442

monochromatic

#1D447F #285EB1 #427CD4 #749FDF #A6C1EB

Accessibility & contrast

On white

4.15

#427CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#427CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CD4

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CD4	#FFFFFF	#000000	##000000
##427CD4	1.00	4.15	5.07	5.07
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5384D7

Deuteranopia (green-blind)

#3B76D2

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427cd4;
/* rgb */ color: rgb(66, 124, 212);
/* oklch */ color: oklch(59.1% 0.148 258.6);

Tailwind

colors: {
  custom: {
    50: '#86a1e2',
    500: '#427cd4',
    950: '#000000',
  },
}

SCSS

$custom: #427cd4;
$custom-light: #86a1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#427cd4",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 212
  },
  "hsl": {
    "h": 216.164,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59081,
    "c": 0.14815,
    "h": 258.6
  },
  "luminance": 0.20327
}

Semantic roles & 50–950 ramp

primary

#427CD4

secondary

#D8BF9A

accent

#A542E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427CD4

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

Preview Lab → · Contrast checker → · Palette generator →