#428EA2#428EA2

#428EA2 is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.7% C 0.080 H 217.6°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#428EA2
RGB	rgb(66, 142, 162)
HSL	hsl(193, 42%, 45%)
HSV	hsv(193, 59%, 64%)
CMYK	cmyk(59.3%, 12.3%, 0%, 36.5%)
CIE-LAB	lab(55.19, -17.39, -17.66)
CIE-LCH	lch(55.19, 24.79, 225.44°)
OKLab	oklab(60.68% -0.0637 -0.049)
OKLCH	oklch(60.68% 0.08 217.6)
XYZ	xyz(18.4388, 23.1111, 37.6646)
Luminance	0.2311 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EA2 #A25642

analogous

#42A286 #428EA2 #425EA2

triadic

#428EA2 #A2428E #8EA242

tetradic

#428EA2 #8642A2 #A25642 #5EA242

square

#428EA2 #8642A2 #A25642 #5EA242

split-complementary

#428EA2 #A2425E #A28642

monochromatic

#1F424B #306877 #428EA2 #62ACBF #8EC3D1

Accessibility & contrast

On white

3.73

#428EA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#428EA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EA2

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EA2	#FFFFFF	#000000	##000000
##428EA2	1.00	3.73	5.62	5.62
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#818AA3

Deuteranopia (green-blind)

#7380A2

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #428ea2;
/* rgb */ color: rgb(66, 142, 162);
/* oklch */ color: oklch(60.7% 0.080 217.6);

Tailwind

colors: {
  custom: {
    50: '#80afbd',
    500: '#428ea2',
    950: '#000000',
  },
}

SCSS

$custom: #428ea2;
$custom-light: #80afbd;
$custom-dark: #000000;

JSON

{
  "hex": "#428ea2",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 162
  },
  "hsl": {
    "h": 192.5,
    "s": 42.105,
    "l": 44.706
  },
  "oklch": {
    "l": 0.60678,
    "c": 0.08039,
    "h": 217.6
  },
  "luminance": 0.23113
}

Semantic roles & 50–950 ramp

primary

#428EA2

secondary

#BC9084

accent

#7056D2

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428EA2

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

Preview Lab → · Contrast checker → · Palette generator →