#427CD7#427CD7

#427CD7 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.3% C 0.152 H 259.1°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#427CD7
RGB	rgb(66, 124, 215)
HSL	hsl(217, 65%, 55%)
HSV	hsv(217, 69%, 84%)
CMYK	cmyk(69.3%, 42.3%, 0%, 15.7%)
CIE-LAB	lab(52.37, 10.96, -52.30)
CIE-LCH	lch(52.37, 53.43, 281.83°)
OKLab	oklab(59.27% -0.0287 -0.1494)
OKLCH	oklch(59.27% 0.152 259.1)
XYZ	xyz(21.7157, 20.4776, 67.0849)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CD7 #D79D42

analogous

#42C7D7 #427CD7 #5242D7

triadic

#427CD7 #D7427C #7CD742

tetradic

#427CD7 #D742C7 #D79D42 #42D752

square

#427CD7 #D742C7 #D79D42 #42D752

split-complementary

#427CD7 #D75242 #C7D742

monochromatic

#1C4483 #265EB5 #427CD7 #759FE2 #A7C2EC

Accessibility & contrast

On white

4.12

#427CD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#427CD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CD7

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CD7	#FFFFFF	#000000	##000000
##427CD7	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5084DB

Deuteranopia (green-blind)

#3777D5

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427cd7;
/* rgb */ color: rgb(66, 124, 215);
/* oklch */ color: oklch(59.3% 0.152 259.1);

Tailwind

colors: {
  custom: {
    50: '#87a1e4',
    500: '#427cd7',
    950: '#000000',
  },
}

SCSS

$custom: #427cd7;
$custom-light: #87a1e4;
$custom-dark: #000000;

JSON

{
  "hex": "#427cd7",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 215
  },
  "hsl": {
    "h": 216.644,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59268,
    "c": 0.15215,
    "h": 259.1
  },
  "luminance": 0.2048
}

Semantic roles & 50–950 ramp

primary

#427CD7

secondary

#DAC19B

accent

#A740E8

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0E15

muted

#7D7E84

Preview Lab

Preview with #427CD7

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

Preview Lab → · Contrast checker → · Palette generator →