#428DAA#428DAA

#428DAA is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.8% C 0.086 H 226.2°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#428DAA
RGB	rgb(66, 141, 170)
HSL	hsl(197, 44%, 46%)
HSV	hsv(197, 61%, 67%)
CMYK	cmyk(61.2%, 17.1%, 0%, 33.3%)
CIE-LAB	lab(55.18, -14.35, -22.25)
CIE-LCH	lch(55.18, 26.48, 237.19°)
OKLab	oklab(60.78% -0.0594 -0.062)
OKLCH	oklch(60.78% 0.086 226.2)
XYZ	xyz(19.0245, 23.1084, 41.4802)
Luminance	0.2311 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428DAA #AA5F42

analogous

#42AA93 #428DAA #4259AA

triadic

#428DAA #AA428D #8DAA42

tetradic

#428DAA #9342AA #AA5F42 #59AA42

square

#428DAA #9342AA #AA5F42 #59AA42

split-complementary

#428DAA #AA4259 #AA9342

monochromatic

#204452 #31687E #428DAA #66A9C3 #92C2D5

Accessibility & contrast

On white

3.74

#428DAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#428DAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428DAA

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428DAA	#FFFFFF	#000000	##000000
##428DAA	1.00	3.74	5.62	5.62
#FFFFFF	3.74	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)

#7D8AAB

Deuteranopia (green-blind)

#6F7FAA

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #428daa;
/* rgb */ color: rgb(66, 141, 170);
/* oklch */ color: oklch(60.8% 0.086 226.2);

Tailwind

colors: {
  custom: {
    50: '#80aec3',
    500: '#428daa',
    950: '#000000',
  },
}

SCSS

$custom: #428daa;
$custom-light: #80aec3;
$custom-dark: #000000;

JSON

{
  "hex": "#428daa",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 170
  },
  "hsl": {
    "h": 196.731,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.60776,
    "c": 0.0859,
    "h": 226.2
  },
  "luminance": 0.2311
}

Semantic roles & 50–950 ramp

primary

#428DAA

secondary

#C09788

accent

#7854D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #428DAA

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

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