#427FEA#427FEA

#427FEA is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.1% C 0.174 H 260.7°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#427FEA
RGB	rgb(66, 127, 234)
HSL	hsl(218, 80%, 59%)
HSV	hsv(218, 72%, 92%)
CMYK	cmyk(71.8%, 45.7%, 0%, 8.2%)
CIE-LAB	lab(54.32, 15.90, -59.85)
CIE-LCH	lch(54.32, 61.93, 284.88°)
OKLab	oklab(61.13% -0.028 -0.1716)
OKLCH	oklch(61.13% 0.174 260.7)
XYZ	xyz(24.6821, 22.2748, 80.8246)
Luminance	0.2228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FEA #EAAD42

analogous

#42D3EA #427FEA #5942EA

triadic

#427FEA #EA427F #7FEA42

tetradic

#427FEA #EA42D3 #EAAD42 #42EA59

square

#427FEA #EA42D3 #EAAD42 #42EA59

split-complementary

#427FEA #EA5942 #D3EA42

monochromatic

#1245A0 #185DD7 #427FEA #79A4F0 #B0CAF6

Accessibility & contrast

On white

3.85

#427FEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#427FEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FEA

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FEA	#FFFFFF	#000000	##000000
##427FEA	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#478AEE

Deuteranopia (green-blind)

#217BE8

Tritanopia (blue-blind)

#0098A9

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #427fea;
/* rgb */ color: rgb(66, 127, 234);
/* oklch */ color: oklch(61.1% 0.174 260.7);

Tailwind

colors: {
  custom: {
    50: '#8aa3f1',
    500: '#427fea',
    950: '#000000',
  },
}

SCSS

$custom: #427fea;
$custom-light: #8aa3f1;
$custom-dark: #000000;

JSON

{
  "hex": "#427fea",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 234
  },
  "hsl": {
    "h": 218.214,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.61129,
    "c": 0.17383,
    "h": 260.7
  },
  "luminance": 0.22278
}

Semantic roles & 50–950 ramp

primary

#427FEA

secondary

#E5CDA3

accent

#AF31F6

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0D0F17

muted

#7E7F85

Preview Lab

Preview with #427FEA

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

Preview Lab → · Contrast checker → · Palette generator →