#428EAA#428EAA

#428EAA is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 61.0% C 0.086 H 225.1°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#428EAA
RGB	rgb(66, 142, 170)
HSL	hsl(196, 44%, 46%)
HSV	hsv(196, 61%, 67%)
CMYK	cmyk(61.2%, 16.5%, 0%, 33.3%)
CIE-LAB	lab(55.49, -14.90, -21.79)
CIE-LCH	lch(55.49, 26.39, 235.64°)
OKLab	oklab(61.02% -0.0605 -0.0607)
OKLCH	oklch(61.02% 0.086 225.1)
XYZ	xyz(19.1726, 23.4046, 41.5296)
Luminance	0.2341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428EAA #AA5E42

analogous

#42AA92 #428EAA #425AAA

triadic

#428EAA #AA428E #8EAA42

tetradic

#428EAA #9242AA #AA5E42 #5AAA42

square

#428EAA #9242AA #AA5E42 #5AAA42

split-complementary

#428EAA #AA425A #AA9242

monochromatic

#204452 #31697E #428EAA #66AAC3 #92C3D5

Accessibility & contrast

On white

3.70

#428EAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#428EAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428EAA

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428EAA	#FFFFFF	#000000	##000000
##428EAA	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8BAB

Deuteranopia (green-blind)

#7080AA

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #428eaa;
/* rgb */ color: rgb(66, 142, 170);
/* oklch */ color: oklch(61.0% 0.086 225.1);

Tailwind

colors: {
  custom: {
    50: '#80afc3',
    500: '#428eaa',
    950: '#000000',
  },
}

SCSS

$custom: #428eaa;
$custom-light: #80afc3;
$custom-dark: #000000;

JSON

{
  "hex": "#428eaa",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 170
  },
  "hsl": {
    "h": 196.154,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.61018,
    "c": 0.08574,
    "h": 225.1
  },
  "luminance": 0.23407
}

Semantic roles & 50–950 ramp

primary

#428EAA

secondary

#C09788

accent

#7654D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428EAA

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

Preview Lab → · Contrast checker → · Palette generator →