#427CC8#427CC8

#427CC8 is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.4% C 0.132 H 256.0°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#427CC8
RGB	rgb(66, 124, 200)
HSL	hsl(214, 55%, 52%)
HSV	hsv(214, 67%, 78%)
CMYK	cmyk(67%, 38%, 0%, 21.6%)
CIE-LAB	lab(51.54, 5.64, -45.11)
CIE-LCH	lch(51.54, 45.46, 277.13°)
OKLab	oklab(58.36% -0.032 -0.1283)
OKLCH	oklch(58.36% 0.132 256)
XYZ	xyz(19.8760, 19.7417, 57.3954)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CC8 #C88E42

analogous

#42BFC8 #427CC8 #4B42C8

triadic

#427CC8 #C8427C #7CC842

tetradic

#427CC8 #C842BF #C88E42 #42C84B

square

#427CC8 #C842BF #C88E42 #42C84B

split-complementary

#427CC8 #C84B42 #BFC842

monochromatic

#20436F #2E5F9F #427CC8 #719DD6 #A1BEE4

Accessibility & contrast

On white

4.24

#427CC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#427CC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CC8

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CC8	#FFFFFF	#000000	##000000
##427CC8	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A82CB

Deuteranopia (green-blind)

#4675C6

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427cc8;
/* rgb */ color: rgb(66, 124, 200);
/* oklch */ color: oklch(58.4% 0.132 256.0);

Tailwind

colors: {
  custom: {
    50: '#84a1d9',
    500: '#427cc8',
    950: '#000000',
  },
}

SCSS

$custom: #427cc8;
$custom-light: #84a1d9;
$custom-dark: #000000;

JSON

{
  "hex": "#427cc8",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 200
  },
  "hsl": {
    "h": 214.03,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58355,
    "c": 0.13223,
    "h": 256
  },
  "luminance": 0.19744
}

Semantic roles & 50–950 ramp

primary

#427CC8

secondary

#D0B796

accent

#9E4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #427CC8

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

Preview Lab → · Contrast checker → · Palette generator →