#427ECF#427ECF

#427ECF is a mid, vivid cyan. Relative luminance 0.206; OKLCH L 59.2% C 0.139 H 256.6°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#427ECF
RGB	rgb(66, 126, 207)
HSL	hsl(214, 59%, 54%)
HSV	hsv(214, 68%, 81%)
CMYK	cmyk(68.1%, 39.1%, 0%, 18.8%)
CIE-LAB	lab(52.49, 6.89, -47.58)
CIE-LCH	lch(52.49, 48.08, 278.24°)
OKLab	oklab(59.21% -0.0323 -0.1355)
OKLCH	oklch(59.21% 0.139 256.6)
XYZ	xyz(20.9660, 20.5828, 61.8873)
Luminance	0.2059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ECF #CF9342

analogous

#42C5CF #427ECF #4C42CF

triadic

#427ECF #CF427E #7ECF42

tetradic

#427ECF #CF42C5 #CF9342 #42CF4C

square

#427ECF #CF42C5 #CF9342 #42CF4C

split-complementary

#427ECF #CF4C42 #C5CF42

monochromatic

#1F4578 #2B61A9 #427ECF #739FDB #A4C1E8

Accessibility & contrast

On white

4.10

#427ECF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#427ECF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ECF

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ECF	#FFFFFF	#000000	##000000
##427ECF	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5984D2

Deuteranopia (green-blind)

#4477CD

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427ecf;
/* rgb */ color: rgb(66, 126, 207);
/* oklch */ color: oklch(59.2% 0.139 256.6);

Tailwind

colors: {
  custom: {
    50: '#85a2de',
    500: '#427ecf',
    950: '#000000',
  },
}

SCSS

$custom: #427ecf;
$custom-light: #85a2de;
$custom-dark: #000000;

JSON

{
  "hex": "#427ecf",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 207
  },
  "hsl": {
    "h": 214.468,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59214,
    "c": 0.13934,
    "h": 256.6
  },
  "luminance": 0.20585
}

Semantic roles & 50–950 ramp

primary

#427ECF

secondary

#D5BB98

accent

#A045E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427ECF

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

Preview Lab → · Contrast checker → · Palette generator →