#427AD5#427AD5

#427AD5 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.7% C 0.152 H 259.6°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#427AD5
RGB	rgb(66, 122, 213)
HSL	hsl(217, 64%, 55%)
HSV	hsv(217, 69%, 84%)
CMYK	cmyk(69%, 42.7%, 0%, 16.5%)
CIE-LAB	lab(51.70, 11.47, -52.24)
CIE-LCH	lch(51.70, 53.49, 282.39°)
OKLab	oklab(58.71% -0.0273 -0.1493)
OKLCH	oklch(58.71% 0.152 259.6)
XYZ	xyz(21.2122, 19.8792, 65.6570)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AD5 #D59D42

analogous

#42C3D5 #427AD5 #5442D5

triadic

#427AD5 #D5427A #7AD542

tetradic

#427AD5 #D542C3 #D59D42 #42D554

square

#427AD5 #D542C3 #D59D42 #42D554

split-complementary

#427AD5 #D55442 #C3D542

monochromatic

#1C4280 #285CB2 #427AD5 #749DE0 #A6C0EB

Accessibility & contrast

On white

4.22

#427AD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#427AD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AD5

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AD5	#FFFFFF	#000000	##000000
##427AD5	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E83D9

Deuteranopia (green-blind)

#3575D3

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427ad5;
/* rgb */ color: rgb(66, 122, 213);
/* oklch */ color: oklch(58.7% 0.152 259.6);

Tailwind

colors: {
  custom: {
    50: '#879fe2',
    500: '#427ad5',
    950: '#000000',
  },
}

SCSS

$custom: #427ad5;
$custom-light: #879fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#427ad5",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 213
  },
  "hsl": {
    "h": 217.143,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.58711,
    "c": 0.15174,
    "h": 259.6
  },
  "luminance": 0.19881
}

Semantic roles & 50–950 ramp

primary

#427AD5

secondary

#D8C19A

accent

#A841E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427AD5

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

Preview Lab → · Contrast checker → · Palette generator →