#428EC2#428EC2

#428EC2 is a light, moderate cyan. Relative luminance 0.244; OKLCH L 62.1% C 0.109 H 241.4°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#428EC2
RGB	rgb(66, 142, 194)
HSL	hsl(204, 51%, 51%)
HSV	hsv(204, 66%, 76%)
CMYK	cmyk(66%, 26.8%, 0%, 23.9%)
CIE-LAB	lab(56.48, -7.05, -33.92)
CIE-LCH	lch(56.48, 34.64, 258.26°)
OKLab	oklab(62.14% -0.052 -0.0955)
OKLCH	oklch(62.14% 0.109 241.4)
XYZ	xyz(21.6537, 24.3971, 54.5964)
Luminance	0.2440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EC2 #C27642

analogous

#42C2B6 #428EC2 #424EC2

triadic

#428EC2 #C2428E #8EC242

tetradic

#428EC2 #B642C2 #C27642 #4EC242

square

#428EC2 #B642C2 #C27642 #4EC242

split-complementary

#428EC2 #C2424E #C2B642

monochromatic

#224B68 #316D96 #428EC2 #70AAD1 #9FC5E0

Accessibility & contrast

On white

3.57

#428EC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#428EC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EC2

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EC2	#FFFFFF	#000000	##000000
##428EC2	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#768EC4

Deuteranopia (green-blind)

#6582C1

Tritanopia (blue-blind)

#009BA0

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #428ec2;
/* rgb */ color: rgb(66, 142, 194);
/* oklch */ color: oklch(62.1% 0.109 241.4);

Tailwind

colors: {
  custom: {
    50: '#84aed4',
    500: '#428ec2',
    950: '#000000',
  },
}

SCSS

$custom: #428ec2;
$custom-light: #84aed4;
$custom-dark: #000000;

JSON

{
  "hex": "#428ec2",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 194
  },
  "hsl": {
    "h": 204.375,
    "s": 51.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.62139,
    "c": 0.10875,
    "h": 241.4
  },
  "luminance": 0.24399
}

Semantic roles & 50–950 ramp

primary

#428EC2

secondary

#CCAB94

accent

#874DDB

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428EC2

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

Preview Lab → · Contrast checker → · Palette generator →