# #428da9 color: Boston Blue

#428da9 is rgb(66, 141, 169) in RGB and oklch(60.732% 0.08513 225.357) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/428da9

## Formats

| Format | Value |
| --- | --- |
| HEX | #428da9 |
| RGB | rgb(66, 141, 169) |
| HSL | hsl(196.31, 43.83%, 46.08%) |
| HSB / HSV | hsv(196.31 60.95% 66.27%) |
| HWB | hwb(196.31 25.88% 33.73%) |
| CMYK | cmyk(61% 17% 0% 34%) |
| Lab | lab(54.77 -17.67 -22.28) |
| LCH | lch(54.77 28.44 231.58) |
| OKLab | oklab(60.732% -0.05982 -0.06057) |
| OKLCH | oklch(60.732% 0.08513 225.357) |
| Display P3 | color(display-p3 0.33556 0.5462 0.65109) |
| Rec. 2020 | color(rec2020 0.35316 0.49318 0.61167) |
| Adobe RGB | color(a98-rgb 0.37378 0.54797 0.65276) |
| ProPhoto RGB | color(prophoto-rgb 0.37675 0.4621 0.58044) |
| Linear sRGB | color(srgb-linear 0.05448 0.26636 0.39676) |
| XYZ D65 | color(xyz-d65 0.18932 0.23072 0.40993) |
| XYZ D50 | color(xyz-d50 0.18311 0.22712 0.30994) |
| SwiftUI | Color(red: 0.259, green: 0.553, blue: 0.663) |
| UIKit | UIColor(red: 0.259, green: 0.553, blue: 0.663, alpha: 1) |
| Flutter / Compose | Color(0xFF428DA9) |
| Android XML | #428DA9 |

## Facts

- Closest name: Boston Blue
- Hue family: Sky blue, bright sky blue
- Closest Tailwind class: cyan-600
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 3.74:1
- Contrast with black: 5.61:1

## Tints

#428da9, #5798b2, #6ba3ba, #7eafc3, #90bacb, #a3c5d4, #b5d1dd, #c7dce5, #dae8ee, #ecf3f6

## Shades

#428da9, #387a92, #2f677c, #255567, #1c4453, #14333f, #0b232c, #05141b, #01070a, #000101

## Tones

#428da9, #4b8ca5, #538ba1, #5a8a9e, #61899a, #678896, #6d8792, #73868e, #78858a, #7d8486

## Harmonies

- Complementary: #428da9, #ad7257
- Split: #428da9, #af6d72, #a07b45
- Analogous: #428da9, #379292, #5f85b5
- Triadic: #428da9, #a76d8e, #8a8546
- Tetradic: #428da9, #7d7bb4, #ad7257, #8a8546
- Square: #428da9, #9673a5, #ad7257, #6c8e5a
- Monochromatic: #428da9, #004761, #176984, #68b2cf, #8ed9f7

## Questions about #428da9

### What color is #428da9?

#428da9 is bright sky blue. The closest named color is Boston Blue. In RGB it is rgb(66, 141, 169), in HSL hsl(196.31, 43.83%, 46.08%) and in OKLCH oklch(60.732% 0.08513 225.357).

### What colors go well with #428da9?

The complementary color of #428da9 is #ad7257. For a calmer combination use the analogous colors #379292 and #5f85b5. The triadic partners are #a76d8e and #8a8546.

### Is white or black text more readable on #428da9?

White text reads better on #428da9: white gives a contrast ratio of 3.74:1 and black gives 5.61:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #428da9 a warm or cool color?

#428da9 is a cool color. In OKLCH its hue is 225 degrees, its lightness 60.7% and its chroma 0.085.