#427FD7#427FD7

#427FD7 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 59.9% C 0.149 H 257.8°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#427FD7
RGB	rgb(66, 127, 215)
HSL	hsl(215, 65%, 55%)
HSV	hsv(215, 69%, 84%)
CMYK	cmyk(69.3%, 40.9%, 0%, 15.7%)
CIE-LAB	lab(53.21, 9.12, -50.96)
CIE-LCH	lch(53.21, 51.77, 280.15°)
OKLab	oklab(59.92% -0.0315 -0.1454)
OKLCH	oklch(59.92% 0.149 257.8)
XYZ	xyz(22.0974, 21.2410, 67.2122)
Luminance	0.2124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FD7 #D79A42

analogous

#42CAD7 #427FD7 #4F42D7

triadic

#427FD7 #D7427F #7FD742

tetradic

#427FD7 #D742CA #D79A42 #42D74F

square

#427FD7 #D742CA #D79A42 #42D74F

split-complementary

#427FD7 #D74F42 #CAD742

monochromatic

#1C4683 #2661B5 #427FD7 #75A1E2 #A7C3EC

Accessibility & contrast

On white

4.00

#427FD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#427FD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FD7

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FD7	#FFFFFF	#000000	##000000
##427FD7	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5687DA

Deuteranopia (green-blind)

#3E79D5

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #427fd7;
/* rgb */ color: rgb(66, 127, 215);
/* oklch */ color: oklch(59.9% 0.149 257.8);

Tailwind

colors: {
  custom: {
    50: '#87a3e4',
    500: '#427fd7',
    950: '#000000',
  },
}

SCSS

$custom: #427fd7;
$custom-light: #87a3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#427fd7",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 215
  },
  "hsl": {
    "h": 215.436,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59918,
    "c": 0.1488,
    "h": 257.8
  },
  "luminance": 0.21243
}

Semantic roles & 50–950 ramp

primary

#427FD7

secondary

#DAC09B

accent

#A340E8

background

#F8FAFE

surface

#F0F3FC

border

#CBCDD5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #427FD7

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

Preview Lab → · Contrast checker → · Palette generator →