#427FDA#427FDA

#427FDA is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.1% C 0.153 H 258.3°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#427FDA
RGB	rgb(66, 127, 218)
HSL	hsl(216, 67%, 56%)
HSV	hsv(216, 70%, 85%)
CMYK	cmyk(69.7%, 41.7%, 0%, 14.5%)
CIE-LAB	lab(53.38, 10.19, -52.38)
CIE-LCH	lch(53.38, 53.36, 281.00°)
OKLab	oklab(60.1% -0.0309 -0.1496)
OKLCH	oklch(60.1% 0.153 258.3)
XYZ	xyz(22.4864, 21.3966, 69.2610)
Luminance	0.2140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FDA #DA9D42

analogous

#42CBDA #427FDA #5142DA

triadic

#427FDA #DA427F #7FDA42

tetradic

#427FDA #DA42CB #DA9D42 #42DA51

square

#427FDA #DA42CB #DA9D42 #42DA51

split-complementary

#427FDA #DA5142 #CBDA42

monochromatic

#1A4687 #2461BA #427FDA #75A2E4 #A8C4EE

Accessibility & contrast

On white

3.98

#427FDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#427FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FDA

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FDA	#FFFFFF	#000000	##000000
##427FDA	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)

#5487DE

Deuteranopia (green-blind)

#3A79D8

Tritanopia (blue-blind)

#0094A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #427fda;
/* rgb */ color: rgb(66, 127, 218);
/* oklch */ color: oklch(60.1% 0.153 258.3);

Tailwind

colors: {
  custom: {
    50: '#87a3e6',
    500: '#427fda',
    950: '#000000',
  },
}

SCSS

$custom: #427fda;
$custom-light: #87a3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#427fda",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 218
  },
  "hsl": {
    "h": 215.921,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.60104,
    "c": 0.15276,
    "h": 258.3
  },
  "luminance": 0.21399
}

Semantic roles & 50–950 ramp

primary

#427FDA

secondary

#DBC29C

accent

#A53EEA

background

#F9FAFE

surface

#F1F3FC

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #427FDA

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

Preview Lab → · Contrast checker → · Palette generator →