#427AD0#427AD0

#427AD0 is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.4% C 0.145 H 258.8°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#427AD0
RGB	rgb(66, 122, 208)
HSL	hsl(216, 60%, 54%)
HSV	hsv(216, 68%, 82%)
CMYK	cmyk(68.3%, 41.3%, 0%, 18.4%)
CIE-LAB	lab(51.42, 9.69, -49.86)
CIE-LCH	lch(51.42, 50.80, 281.00°)
OKLab	oklab(58.4% -0.0283 -0.1423)
OKLCH	oklch(58.4% 0.145 258.8)
XYZ	xyz(20.5874, 19.6293, 62.3661)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AD0 #D09842

analogous

#42C1D0 #427AD0 #5142D0

triadic

#427AD0 #D0427A #7AD042

tetradic

#427AD0 #D042C1 #D09842 #42D051

square

#427AD0 #D042C1 #D09842 #42D051

split-complementary

#427AD0 #D05142 #C1D042

monochromatic

#1E4279 #2A5DAA #427AD0 #739CDC #A4BFE8

Accessibility & contrast

On white

4.26

#427AD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#427AD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AD0

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AD0	#FFFFFF	#000000	##000000
##427AD0	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5282D3

Deuteranopia (green-blind)

#3B74CE

Tritanopia (blue-blind)

#008E9B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427ad0;
/* rgb */ color: rgb(66, 122, 208);
/* oklch */ color: oklch(58.4% 0.145 258.8);

Tailwind

colors: {
  custom: {
    50: '#869fdf',
    500: '#427ad0',
    950: '#000000',
  },
}

SCSS

$custom: #427ad0;
$custom-light: #869fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#427ad0",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 208
  },
  "hsl": {
    "h": 216.338,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58398,
    "c": 0.14506,
    "h": 258.8
  },
  "luminance": 0.19631
}

Semantic roles & 50–950 ramp

primary

#427AD0

secondary

#D5BD99

accent

#A544E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427AD0

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

Preview Lab → · Contrast checker → · Palette generator →