#427EC5#427EC5

#427EC5 is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.6% C 0.126 H 254.0°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#427EC5
RGB	rgb(66, 126, 197)
HSL	hsl(213, 53%, 52%)
HSV	hsv(213, 66%, 77%)
CMYK	cmyk(66.5%, 36%, 0%, 22.7%)
CIE-LAB	lab(51.96, 3.38, -42.73)
CIE-LCH	lch(51.96, 42.87, 274.52°)
OKLab	oklab(58.63% -0.0347 -0.1213)
OKLCH	oklch(58.63% 0.126 254)
XYZ	xyz(19.7820, 20.1092, 55.6514)
Luminance	0.2011 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427EC5 #C58942

analogous

#42C0C5 #427EC5 #4842C5

triadic

#427EC5 #C5427E #7EC542

tetradic

#427EC5 #C542C0 #C58942 #42C548

square

#427EC5 #C542C0 #C58942 #42C548

split-complementary

#427EC5 #C54842 #C0C542

monochromatic

#21436C #2F609A #427EC5 #719ED3 #A0BEE2

Accessibility & contrast

On white

4.18

#427EC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#427EC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EC5

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427EC5	#FFFFFF	#000000	##000000
##427EC5	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83C8

Deuteranopia (green-blind)

#4C76C4

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427ec5;
/* rgb */ color: rgb(66, 126, 197);
/* oklch */ color: oklch(58.6% 0.126 254.0);

Tailwind

colors: {
  custom: {
    50: '#84a3d7',
    500: '#427ec5',
    950: '#000000',
  },
}

SCSS

$custom: #427ec5;
$custom-light: #84a3d7;
$custom-dark: #000000;

JSON

{
  "hex": "#427ec5",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 197
  },
  "hsl": {
    "h": 212.519,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58629,
    "c": 0.12621,
    "h": 254
  },
  "luminance": 0.20111
}

Semantic roles & 50–950 ramp

primary

#427EC5

secondary

#CEB495

accent

#9A4BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F14

muted

#7D7E83

Preview Lab

Preview with #427EC5

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

Preview Lab → · Contrast checker → · Palette generator →