#427AD9#427AD9

#427AD9 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.0% C 0.157 H 260.3°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#427AD9
RGB	rgb(66, 122, 217)
HSL	hsl(218, 67%, 55%)
HSV	hsv(218, 70%, 85%)
CMYK	cmyk(69.6%, 43.8%, 0%, 14.9%)
CIE-LAB	lab(51.93, 12.90, -54.13)
CIE-LCH	lch(51.93, 55.65, 283.41°)
OKLab	oklab(58.97% -0.0265 -0.1548)
OKLCH	oklch(58.97% 0.157 260.3)
XYZ	xyz(21.7262, 20.0848, 68.3639)
Luminance	0.2009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AD9 #D9A142

analogous

#42C6D9 #427AD9 #5542D9

triadic

#427AD9 #D9427A #7AD942

tetradic

#427AD9 #D942C6 #D9A142 #42D955

square

#427AD9 #D942C6 #D9A142 #42D955

split-complementary

#427AD9 #D95542 #C6D942

monochromatic

#1B4386 #255CB9 #427AD9 #759EE3 #A8C2ED

Accessibility & contrast

On white

4.19

#427AD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#427AD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AD9

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AD9	#FFFFFF	#000000	##000000
##427AD9	1.00	4.19	5.02	5.02
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B83DD

Deuteranopia (green-blind)

#3075D7

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427ad9;
/* rgb */ color: rgb(66, 122, 217);
/* oklch */ color: oklch(59.0% 0.157 260.3);

Tailwind

colors: {
  custom: {
    50: '#879fe5',
    500: '#427ad9',
    950: '#000000',
  },
}

SCSS

$custom: #427ad9;
$custom-light: #879fe5;
$custom-dark: #000000;

JSON

{
  "hex": "#427ad9",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 217
  },
  "hsl": {
    "h": 217.748,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.58966,
    "c": 0.15707,
    "h": 260.3
  },
  "luminance": 0.20087
}

Semantic roles & 50–950 ramp

primary

#427AD9

secondary

#DBC49C

accent

#AA3EE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #427AD9

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

Preview Lab → · Contrast checker → · Palette generator →