#427DFF#427DFF

#427DFF is a light, highly saturated blue. Relative luminance 0.230; OKLCH L 62.2% C 0.203 H 263.3°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#427DFF
RGB	rgb(66, 125, 255)
HSL	hsl(221, 100%, 63%)
HSV	hsv(221, 74%, 100%)
CMYK	cmyk(74.1%, 51%, 0%, 0%)
CIE-LAB	lab(55.12, 24.66, -70.21)
CIE-LCH	lch(55.12, 74.42, 289.35°)
OKLab	oklab(62.17% -0.0237 -0.2021)
OKLCH	oklch(62.17% 0.203 263.3)
XYZ	xyz(27.6239, 23.0424, 97.5801)
Luminance	0.2304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DFF #FFC442

analogous

#42DBFF #427DFF #6542FF

triadic

#427DFF #FF427D #7DFF42

tetradic

#427DFF #FF42DB #FFC442 #42FF65

square

#427DFF #FF42DB #FFC442 #42FF65

split-complementary

#427DFF #FF6542 #DBFF42

monochromatic

#003EC7 #0553FF #427DFF #7FA7FF #BCD1FF

Accessibility & contrast

On white

3.74

#427DFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#427DFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DFF

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DFF	#FFFFFF	#000000	##000000
##427DFF	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#268DFF

Deuteranopia (green-blind)

#007CFC

Tritanopia (blue-blind)

#009CB2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #427dff;
/* rgb */ color: rgb(66, 125, 255);
/* oklch */ color: oklch(62.2% 0.203 263.3);

Tailwind

colors: {
  custom: {
    50: '#8fa2ff',
    500: '#427dff',
    950: '#000000',
  },
}

SCSS

$custom: #427dff;
$custom-light: #8fa2ff;
$custom-dark: #000000;

JSON

{
  "hex": "#427dff",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 255
  },
  "hsl": {
    "h": 221.27,
    "s": 100,
    "l": 62.941
  },
  "oklch": {
    "l": 0.62165,
    "c": 0.20346,
    "h": 263.3
  },
  "luminance": 0.23045
}

Semantic roles & 50–950 ramp

primary

#427DFF

secondary

#F0DBAC

accent

#9E00E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #427DFF

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

Preview Lab → · Contrast checker → · Palette generator →