#427ECB#427ECB

#427ECB is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 59.0% C 0.134 H 255.6°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#427ECB
RGB	rgb(66, 126, 203)
HSL	hsl(214, 57%, 53%)
HSV	hsv(214, 67%, 80%)
CMYK	cmyk(67.5%, 37.9%, 0%, 20.4%)
CIE-LAB	lab(52.27, 5.48, -45.65)
CIE-LCH	lch(52.27, 45.98, 276.85°)
OKLab	oklab(58.98% -0.0332 -0.1299)
OKLCH	oklch(58.98% 0.134 255.6)
XYZ	xyz(20.4832, 20.3897, 59.3444)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427ECB #CB8F42

analogous

#42C2CB #427ECB #4B42CB

triadic

#427ECB #CB427E #7ECB42

tetradic

#427ECB #CB42C2 #CB8F42 #42CB4B

square

#427ECB #CB42C2 #CB8F42 #42CB4B

split-complementary

#427ECB #CB4B42 #C2CB42

monochromatic

#204473 #2D61A3 #427ECB #729FD8 #A2C0E5

Accessibility & contrast

On white

4.14

#427ECB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#427ECB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427ECB

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427ECB	#FFFFFF	#000000	##000000
##427ECB	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B84CE

Deuteranopia (green-blind)

#4777C9

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #427ecb;
/* rgb */ color: rgb(66, 126, 203);
/* oklch */ color: oklch(59.0% 0.134 255.6);

Tailwind

colors: {
  custom: {
    50: '#85a2db',
    500: '#427ecb',
    950: '#000000',
  },
}

SCSS

$custom: #427ecb;
$custom-light: #85a2db;
$custom-dark: #000000;

JSON

{
  "hex": "#427ecb",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 203
  },
  "hsl": {
    "h": 213.723,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58977,
    "c": 0.13406,
    "h": 255.6
  },
  "luminance": 0.20392
}

Semantic roles & 50–950 ramp

primary

#427ECB

secondary

#D2B897

accent

#9D48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427ECB

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

Preview Lab → · Contrast checker → · Palette generator →