#428BA2#428BA2

#428BA2 is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 59.9% C 0.080 H 221.3°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#428BA2
RGB	rgb(66, 139, 162)
HSL	hsl(194, 42%, 45%)
HSV	hsv(194, 59%, 64%)
CMYK	cmyk(59.3%, 14.2%, 0%, 36.5%)
CIE-LAB	lab(54.27, -15.77, -19.06)
CIE-LCH	lch(54.27, 24.73, 230.40°)
OKLab	oklab(59.95% -0.0603 -0.053)
OKLCH	oklch(59.95% 0.08 221.3)
XYZ	xyz(17.9984, 22.2304, 37.5178)
Luminance	0.2223 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428BA2 #A25942

analogous

#42A289 #428BA2 #425BA2

triadic

#428BA2 #A2428B #8BA242

tetradic

#428BA2 #8942A2 #A25942 #5BA242

square

#428BA2 #8942A2 #A25942 #5BA242

split-complementary

#428BA2 #A2425B #A28942

monochromatic

#1F404B #306677 #428BA2 #62A9BF #8EC1D1

Accessibility & contrast

On white

3.86

#428BA2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#428BA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428BA2

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428BA2	#FFFFFF	#000000	##000000
##428BA2	1.00	3.86	5.45	5.45
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D88A3

Deuteranopia (green-blind)

#6F7DA2

Tritanopia (blue-blind)

#009292

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #428ba2;
/* rgb */ color: rgb(66, 139, 162);
/* oklch */ color: oklch(59.9% 0.080 221.3);

Tailwind

colors: {
  custom: {
    50: '#7fadbd',
    500: '#428ba2',
    950: '#000000',
  },
}

SCSS

$custom: #428ba2;
$custom-light: #7fadbd;
$custom-dark: #000000;

JSON

{
  "hex": "#428ba2",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 162
  },
  "hsl": {
    "h": 194.375,
    "s": 42.105,
    "l": 44.706
  },
  "oklch": {
    "l": 0.59945,
    "c": 0.08027,
    "h": 221.3
  },
  "luminance": 0.22232
}

Semantic roles & 50–950 ramp

primary

#428BA2

secondary

#BC9184

accent

#7456D2

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428BA2

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

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