# #155a8a color: Stunning Sapphire

#155a8a is rgb(21, 90, 138) in RGB and oklch(45.13% 0.10212 244.725) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/155a8a

## Formats

| Format | Value |
| --- | --- |
| HEX | #155a8a |
| RGB | rgb(21, 90, 138) |
| HSL | hsl(204.62, 73.58%, 31.18%) |
| HSB / HSV | hsv(204.62 84.78% 54.12%) |
| HWB | hwb(204.62 8.24% 45.88%) |
| CMYK | cmyk(85% 35% 0% 46%) |
| Lab | lab(36.06 -7.21 -33.16) |
| LCH | lch(36.06 33.94 257.74) |
| OKLab | oklab(45.13% -0.0436 -0.09235) |
| OKLCH | oklch(45.13% 0.10212 244.725) |
| Display P3 | color(display-p3 0.16925 0.34767 0.52604) |
| Rec. 2020 | color(rec2020 0.18463 0.28619 0.47553) |
| Adobe RGB | color(a98-rgb 0.21631 0.35454 0.53036) |
| ProPhoto RGB | color(prophoto-rgb 0.23442 0.2739 0.44424) |
| Linear sRGB | color(srgb-linear 0.0075 0.10224 0.25415) |
| XYZ D65 | color(xyz-d65 0.08552 0.09306 0.25391) |
| XYZ D50 | color(xyz-d50 0.07901 0.09037 0.19152) |
| SwiftUI | Color(red: 0.082, green: 0.353, blue: 0.541) |
| UIKit | UIColor(red: 0.082, green: 0.353, blue: 0.541, alpha: 1) |
| Flutter / Compose | Color(0xFF155A8A) |
| Android XML | #155A8A |

## Facts

- Closest name: Stunning Sapphire
- Hue family: Sky blue, deep dark sky blue
- Closest Tailwind class: sky-800
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 7.34:1
- Contrast with black: 2.86:1

## Tints

#155a8a, #326a96, #497aa2, #608aad, #769ab9, #8caac5, #a2bbd0, #b9ccdc, #d0dde8, #e7eef3

## Shades

#155a8a, #114d77, #0c4165, #083553, #052942, #031e32, #021322, #010914, #000307, #000001

## Tones

#155a8a, #215a85, #295a80, #315a7b, #375976, #3d5970, #42586b, #485866, #4c5760, #51565b

## Harmonies

- Complementary: #155a8a, #7c4700
- Split: #155a8a, #853e2c, #685400
- Analogous: #155a8a, #006278, #454f8e
- Triadic: #155a8a, #833a4e, #495f13
- Tetradic: #155a8a, #634583, #7c4700, #495f13
- Square: #155a8a, #773e6c, #7c4700, #16663b
- Monochromatic: #155a8a, #00193c, #003866, #3d7db0, #62a2d7

## Questions about #155a8a

### What color is #155a8a?

#155a8a is deep dark sky blue. The closest named color is Stunning Sapphire. In RGB it is rgb(21, 90, 138), in HSL hsl(204.62, 73.58%, 31.18%) and in OKLCH oklch(45.13% 0.10212 244.725).

### What colors go well with #155a8a?

The complementary color of #155a8a is #7c4700. For a calmer combination use the analogous colors #006278 and #454f8e. The triadic partners are #833a4e and #495f13.

### Is white or black text more readable on #155a8a?

White text reads better on #155a8a: white gives a contrast ratio of 7.34:1 and black gives 2.86:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #155a8a a warm or cool color?

#155a8a is a cool color. In OKLCH its hue is 245 degrees, its lightness 45.1% and its chroma 0.102.