#427DDE#427DDE

#427DDE is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.9% C 0.160 H 259.8°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#427DDE
RGB	rgb(66, 125, 222)
HSL	hsl(217, 70%, 56%)
HSV	hsv(217, 70%, 87%)
CMYK	cmyk(70.3%, 43.7%, 0%, 12.9%)
CIE-LAB	lab(53.06, 12.84, -55.15)
CIE-LCH	lch(53.06, 56.63, 283.10°)
OKLab	oklab(59.93% -0.0283 -0.1578)
OKLCH	oklch(59.93% 0.16 259.8)
XYZ	xyz(22.7605, 21.0970, 71.9657)
Luminance	0.2110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DDE #DEA342

analogous

#42CBDE #427DDE #5542DE

triadic

#427DDE #DE427D #7DDE42

tetradic

#427DDE #DE42CB #DEA342 #42DE55

square

#427DDE #DE42CB #DEA342 #42DE55

split-complementary

#427DDE #DE5542 #CBDE42

monochromatic

#19458D #225EC1 #427DDE #76A1E7 #AAC5F0

Accessibility & contrast

On white

4.02

#427DDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#427DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DDE

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DDE	#FFFFFF	#000000	##000000
##427DDE	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D86E2

Deuteranopia (green-blind)

#3078DC

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #427dde;
/* rgb */ color: rgb(66, 125, 222);
/* oklch */ color: oklch(59.9% 0.160 259.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#427dde",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 222
  },
  "hsl": {
    "h": 217.308,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59927,
    "c": 0.1603,
    "h": 259.8
  },
  "luminance": 0.21099
}

Semantic roles & 50–950 ramp

primary

#427DDE

secondary

#DEC69E

accent

#AA3BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #427DDE

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

Preview Lab → · Contrast checker → · Palette generator →