#427ECC#427ECC

#427ECC is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 59.0% C 0.135 H 255.9°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#427ECC
RGB	rgb(66, 126, 204)
HSL	hsl(214, 58%, 53%)
HSV	hsv(214, 68%, 80%)
CMYK	cmyk(67.6%, 38.2%, 0%, 20%)
CIE-LAB	lab(52.33, 5.83, -46.14)
CIE-LCH	lch(52.33, 46.50, 277.21°)
OKLab	oklab(59.04% -0.033 -0.1313)
OKLCH	oklch(59.04% 0.135 255.9)
XYZ	xyz(20.6027, 20.4375, 59.9741)
Luminance	0.2044 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ECC #CC9042

analogous

#42C3CC #427ECC #4B42CC

triadic

#427ECC #CC427E #7ECC42

tetradic

#427ECC #CC42C3 #CC9042 #42CC4B

square

#427ECC #CC42C3 #CC9042 #42CC4B

split-complementary

#427ECC #CC4B42 #C3CC42

monochromatic

#1F4474 #2C61A4 #427ECC #729FD9 #A2C0E6

Accessibility & contrast

On white

4.13

#427ECC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#427ECC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ECC

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ECC	#FFFFFF	#000000	##000000
##427ECC	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B84CF

Deuteranopia (green-blind)

#4677CA

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427ecc;
/* rgb */ color: rgb(66, 126, 204);
/* oklch */ color: oklch(59.0% 0.135 255.9);

Tailwind

colors: {
  custom: {
    50: '#85a2dc',
    500: '#427ecc',
    950: '#000000',
  },
}

SCSS

$custom: #427ecc;
$custom-light: #85a2dc;
$custom-dark: #000000;

JSON

{
  "hex": "#427ecc",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 204
  },
  "hsl": {
    "h": 213.913,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.59036,
    "c": 0.13538,
    "h": 255.9
  },
  "luminance": 0.2044
}

Semantic roles & 50–950 ramp

primary

#427ECC

secondary

#D3B997

accent

#9E47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427ECC

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

Preview Lab → · Contrast checker → · Palette generator →