#428EC6#428EC6

#428EC6 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.3% C 0.113 H 243.4°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#428EC6
RGB	rgb(66, 142, 198)
HSL	hsl(205, 54%, 52%)
HSV	hsv(205, 67%, 78%)
CMYK	cmyk(66.7%, 28.3%, 0%, 22.4%)
CIE-LAB	lab(56.66, -5.70, -35.90)
CIE-LCH	lch(56.66, 36.35, 260.98°)
OKLab	oklab(62.34% -0.0507 -0.1013)
OKLCH	oklch(62.34% 0.113 243.4)
XYZ	xyz(22.1089, 24.5792, 56.9942)
Luminance	0.2458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EC6 #C67A42

analogous

#42C6BC #428EC6 #424CC6

triadic

#428EC6 #C6428E #8EC642

tetradic

#428EC6 #BC42C6 #C67A42 #4CC642

square

#428EC6 #BC42C6 #C67A42 #4CC642

split-complementary

#428EC6 #C6424C #C6BC42

monochromatic

#214D6D #2F6E9C #428EC6 #71AAD4 #A0C6E2

Accessibility & contrast

On white

3.55

#428EC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#428EC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EC6

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EC6	#FFFFFF	#000000	##000000
##428EC6	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#758FC9

Deuteranopia (green-blind)

#6382C5

Tritanopia (blue-blind)

#009CA2

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #428ec6;
/* rgb */ color: rgb(66, 142, 198);
/* oklch */ color: oklch(62.3% 0.113 243.4);

Tailwind

colors: {
  custom: {
    50: '#84aed7',
    500: '#428ec6',
    950: '#000000',
  },
}

SCSS

$custom: #428ec6;
$custom-light: #84aed7;
$custom-dark: #000000;

JSON

{
  "hex": "#428ec6",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 198
  },
  "hsl": {
    "h": 205.455,
    "s": 53.659,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62341,
    "c": 0.11324,
    "h": 243.4
  },
  "luminance": 0.24581
}

Semantic roles & 50–950 ramp

primary

#428EC6

secondary

#CFAE95

accent

#894BDD

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428EC6

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

Preview Lab → · Contrast checker → · Palette generator →