#427DDC#427DDC

#427DDC is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.8% C 0.158 H 259.5°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#427DDC
RGB	rgb(66, 125, 220)
HSL	hsl(217, 69%, 56%)
HSV	hsv(217, 70%, 86%)
CMYK	cmyk(70%, 43.2%, 0%, 13.7%)
CIE-LAB	lab(52.94, 12.13, -54.21)
CIE-LCH	lch(52.94, 55.55, 282.61°)
OKLab	oklab(59.8% -0.0287 -0.155)
OKLCH	oklch(59.8% 0.158 259.5)
XYZ	xyz(22.4940, 20.9904, 70.5624)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DDC #DCA142

analogous

#42CADC #427DDC #5442DC

triadic

#427DDC #DC427D #7DDC42

tetradic

#427DDC #DC42CA #DCA142 #42DC54

square

#427DDC #DC42CA #DCA142 #42DC54

split-complementary

#427DDC #DC5442 #CADC42

monochromatic

#1A458A #235EBE #427DDC #76A1E6 #A9C4EF

Accessibility & contrast

On white

4.04

#427DDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#427DDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DDC

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DDC	#FFFFFF	#000000	##000000
##427DDC	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F86E0

Deuteranopia (green-blind)

#3378DA

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #427ddc;
/* rgb */ color: rgb(66, 125, 220);
/* oklch */ color: oklch(59.8% 0.158 259.5);

Tailwind

colors: {
  custom: {
    50: '#88a2e7',
    500: '#427ddc',
    950: '#000000',
  },
}

SCSS

$custom: #427ddc;
$custom-light: #88a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#427ddc",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 220
  },
  "hsl": {
    "h": 217.013,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59799,
    "c": 0.15765,
    "h": 259.5
  },
  "luminance": 0.20993
}

Semantic roles & 50–950 ramp

primary

#427DDC

secondary

#DDC49D

accent

#A83CEC

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #427DDC

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

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