# #17538f color: Nautical Blue

#17538f is rgb(23, 83, 143) in RGB and oklch(43.774% 0.11549 252.354) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/17538f

## Formats

| Format | Value |
| --- | --- |
| HEX | #17538f |
| RGB | rgb(23, 83, 143) |
| HSL | hsl(210, 72.29%, 32.55%) |
| HSB / HSV | hsv(210 83.92% 56.08%) |
| HWB | hwb(210 9.02% 43.92%) |
| CMYK | cmyk(84% 42% 0% 44%) |
| Lab | lab(34.1 -1.25 -39.28) |
| LCH | lch(34.1 39.3 268.18) |
| OKLab | oklab(43.774% -0.03501 -0.11006) |
| OKLCH | oklch(43.774% 0.11549 252.354) |
| Display P3 | color(display-p3 0.16171 0.32071 0.54347) |
| Rec. 2020 | color(rec2020 0.17506 0.25987 0.49377) |
| Adobe RGB | color(a98-rgb 0.20537 0.32859 0.5485) |
| ProPhoto RGB | color(prophoto-rgb 0.23131 0.25279 0.46092) |
| Linear sRGB | color(srgb-linear 0.00857 0.0865 0.27468) |
| XYZ D65 | color(xyz-d65 0.08404 0.08351 0.27157) |
| XYZ D50 | color(xyz-d50 0.07635 0.08057 0.20466) |
| SwiftUI | Color(red: 0.09, green: 0.325, blue: 0.561) |
| UIKit | UIColor(red: 0.09, green: 0.325, blue: 0.561, alpha: 1) |
| Flutter / Compose | Color(0xFF17538F) |
| Android XML | #17538F |

## Facts

- Closest name: Nautical Blue
- Hue family: Blue, deep dark blue
- Closest Tailwind class: sky-800
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 7.86:1
- Contrast with black: 2.67:1

## Tints

#17538f, #31649b, #4874a6, #5e85b2, #7496bd, #8ba7c8, #a1b8d3, #b8cade, #cfdbe9, #e7edf4

## Shades

#17538f, #12477c, #0e3b69, #0a3057, #062545, #041b34, #021124, #010815, #000207, #000001

## Tones

#17538f, #205389, #285483, #2f547d, #355477, #3a5471, #3f546b, #445365, #49535f, #4d5258

## Harmonies

- Complementary: #17538f, #774500
- Split: #17538f, #843714, #5e5300
- Analogous: #17538f, #005d7a, #4a478f
- Triadic: #17538f, #853140, #385e0b
- Tetradic: #17538f, #673c7f, #774500, #385e0b
- Square: #17538f, #7b3463, #774500, #00653e
- Monochromatic: #17538f, #001141, #00316a, #3d76b5, #619bdd

## Questions about #17538f

### What color is #17538f?

#17538f is deep dark blue. The closest named color is Nautical Blue. In RGB it is rgb(23, 83, 143), in HSL hsl(210, 72.29%, 32.55%) and in OKLCH oklch(43.774% 0.11549 252.354).

### What colors go well with #17538f?

The complementary color of #17538f is #774500. For a calmer combination use the analogous colors #005d7a and #4a478f. The triadic partners are #853140 and #385e0b.

### Is white or black text more readable on #17538f?

White text reads better on #17538f: white gives a contrast ratio of 7.86:1 and black gives 2.67:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #17538f a warm or cool color?

#17538f is a cool color. In OKLCH its hue is 252 degrees, its lightness 43.8% and its chroma 0.115.