#427ED7#427ED7

#427ED7 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.7% C 0.150 H 258.2°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#427ED7
RGB	rgb(66, 126, 215)
HSL	hsl(216, 65%, 55%)
HSV	hsv(216, 69%, 84%)
CMYK	cmyk(69.3%, 41.4%, 0%, 15.7%)
CIE-LAB	lab(52.93, 9.73, -51.41)
CIE-LCH	lch(52.93, 52.32, 280.72°)
OKLab	oklab(59.7% -0.0306 -0.1467)
OKLCH	oklch(59.7% 0.15 258.2)
XYZ	xyz(21.9689, 20.9840, 67.1693)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ED7 #D79B42

analogous

#42C9D7 #427ED7 #5042D7

triadic

#427ED7 #D7427E #7ED742

tetradic

#427ED7 #D742C9 #D79B42 #42D750

square

#427ED7 #D742C9 #D79B42 #42D750

split-complementary

#427ED7 #D75042 #C9D742

monochromatic

#1C4583 #2660B5 #427ED7 #75A0E2 #A7C3EC

Accessibility & contrast

On white

4.04

#427ED7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#427ED7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ED7

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ED7	#FFFFFF	#000000	##000000
##427ED7	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5486DA

Deuteranopia (green-blind)

#3C78D5

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #427ed7;
/* rgb */ color: rgb(66, 126, 215);
/* oklch */ color: oklch(59.7% 0.150 258.2);

Tailwind

colors: {
  custom: {
    50: '#87a2e4',
    500: '#427ed7',
    950: '#000000',
  },
}

SCSS

$custom: #427ed7;
$custom-light: #87a2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#427ed7",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 215
  },
  "hsl": {
    "h": 215.839,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59701,
    "c": 0.1499,
    "h": 258.2
  },
  "luminance": 0.20986
}

Semantic roles & 50–950 ramp

primary

#427ED7

secondary

#DAC09B

accent

#A440E8

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0F15

muted

#7D7E84

Preview Lab

Preview with #427ED7

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

Preview Lab → · Contrast checker → · Palette generator →