#427EDF#427EDF

#427EDF is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.160 H 259.6°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#427EDF
RGB	rgb(66, 126, 223)
HSL	hsl(217, 71%, 57%)
HSV	hsv(217, 70%, 87%)
CMYK	cmyk(70.4%, 43.5%, 0%, 12.5%)
CIE-LAB	lab(53.39, 12.58, -55.18)
CIE-LCH	lch(53.39, 56.60, 282.84°)
OKLab	oklab(60.2% -0.029 -0.1578)
OKLCH	oklch(60.2% 0.16 259.6)
XYZ	xyz(23.0221, 21.4052, 72.7160)
Luminance	0.2141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EDF #DFA342

analogous

#42CDDF #427EDF #5542DF

triadic

#427EDF #DF427E #7EDF42

tetradic

#427EDF #DF42CD #DFA342 #42DF55

square

#427EDF #DF42CD #DFA342 #42DF55

split-complementary

#427EDF #DF5542 #CDDF42

monochromatic

#18458E #215FC3 #427EDF #76A2E8 #ABC5F1

Accessibility & contrast

On white

3.98

#427EDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#427EDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EDF

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EDF	#FFFFFF	#000000	##000000
##427EDF	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E87E3

Deuteranopia (green-blind)

#3279DD

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #427edf;
/* rgb */ color: rgb(66, 126, 223);
/* oklch */ color: oklch(60.2% 0.160 259.6);

Tailwind

colors: {
  custom: {
    50: '#88a2e9',
    500: '#427edf',
    950: '#000000',
  },
}

SCSS

$custom: #427edf;
$custom-light: #88a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#427edf",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 223
  },
  "hsl": {
    "h": 217.07,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.60204,
    "c": 0.16049,
    "h": 259.6
  },
  "luminance": 0.21408
}

Semantic roles & 50–950 ramp

primary

#427EDF

secondary

#DFC69E

accent

#A93AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #427EDF

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

Preview Lab → · Contrast checker → · Palette generator →