#427CD1#427CD1

#427CD1 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 58.9% C 0.144 H 258.0°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#427CD1
RGB	rgb(66, 124, 209)
HSL	hsl(216, 61%, 54%)
HSV	hsv(216, 68%, 82%)
CMYK	cmyk(68.4%, 40.7%, 0%, 18%)
CIE-LAB	lab(52.03, 8.82, -49.44)
CIE-LCH	lch(52.03, 50.22, 280.12°)
OKLab	oklab(58.9% -0.0299 -0.141)
OKLCH	oklch(58.9% 0.144 258)
XYZ	xyz(20.9589, 20.1748, 63.0988)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CD1 #D19742

analogous

#42C4D1 #427CD1 #5042D1

triadic

#427CD1 #D1427C #7CD142

tetradic

#427CD1 #D142C4 #D19742 #42D150

square

#427CD1 #D142C4 #D19742 #42D150

split-complementary

#427CD1 #D15042 #C4D142

monochromatic

#1E447B #2A5FAC #427CD1 #739EDD #A4C0E9

Accessibility & contrast

On white

4.17

#427CD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#427CD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CD1

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CD1	#FFFFFF	#000000	##000000
##427CD1	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5583D4

Deuteranopia (green-blind)

#3E76CF

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427cd1;
/* rgb */ color: rgb(66, 124, 209);
/* oklch */ color: oklch(58.9% 0.144 258.0);

Tailwind

colors: {
  custom: {
    50: '#86a1df',
    500: '#427cd1',
    950: '#000000',
  },
}

SCSS

$custom: #427cd1;
$custom-light: #86a1df;
$custom-dark: #000000;

JSON

{
  "hex": "#427cd1",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 209
  },
  "hsl": {
    "h": 215.664,
    "s": 60.851,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58896,
    "c": 0.14417,
    "h": 258
  },
  "luminance": 0.20177
}

Semantic roles & 50–950 ramp

primary

#427CD1

secondary

#D6BD99

accent

#A344E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #427CD1

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

Preview Lab → · Contrast checker → · Palette generator →