#427CC5#427CC5

#427CC5 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.2% C 0.128 H 255.2°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#427CC5
RGB	rgb(66, 124, 197)
HSL	hsl(213, 53%, 52%)
HSV	hsv(213, 66%, 77%)
CMYK	cmyk(66.5%, 37.1%, 0%, 22.7%)
CIE-LAB	lab(51.39, 4.59, -43.65)
CIE-LCH	lch(51.39, 43.89, 276.00°)
OKLab	oklab(58.18% -0.0327 -0.124)
OKLCH	oklch(58.18% 0.128 255.2)
XYZ	xyz(19.5288, 19.6028, 55.5670)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CC5 #C58B42

analogous

#42BEC5 #427CC5 #4A42C5

triadic

#427CC5 #C5427C #7CC542

tetradic

#427CC5 #C542BE #C58B42 #42C54A

square

#427CC5 #C542BE #C58B42 #42C54A

split-complementary

#427CC5 #C54A42 #BEC542

monochromatic

#21426C #2F5F9A #427CC5 #719CD3 #A0BDE2

Accessibility & contrast

On white

4.27

#427CC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#427CC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CC5

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CC5	#FFFFFF	#000000	##000000
##427CC5	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C81C8

Deuteranopia (green-blind)

#4975C4

Tritanopia (blue-blind)

#008D97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427cc5;
/* rgb */ color: rgb(66, 124, 197);
/* oklch */ color: oklch(58.2% 0.128 255.2);

Tailwind

colors: {
  custom: {
    50: '#84a1d7',
    500: '#427cc5',
    950: '#000000',
  },
}

SCSS

$custom: #427cc5;
$custom-light: #84a1d7;
$custom-dark: #000000;

JSON

{
  "hex": "#427cc5",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 197
  },
  "hsl": {
    "h": 213.435,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.5818,
    "c": 0.12827,
    "h": 255.2
  },
  "luminance": 0.19605
}

Semantic roles & 50–950 ramp

primary

#427CC5

secondary

#CEB595

accent

#9C4BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #427CC5

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

Preview Lab → · Contrast checker → · Palette generator →