# #031b40 color: Maastricht Blue

#031b40 is rgb(3, 27, 64) in RGB and oklch(22.963% 0.07711 258.364) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/031b40

## Formats

| Format | Value |
| --- | --- |
| HEX | #031b40 |
| RGB | rgb(3, 27, 64) |
| HSL | hsl(216.39, 91.04%, 13.14%) |
| HSB / HSV | hsv(216.39 95.31% 25.1%) |
| HWB | hwb(216.39 1.18% 74.9%) |
| CMYK | cmyk(95% 58% 0% 75%) |
| Lab | lab(9.93 3.96 -26.79) |
| LCH | lch(9.93 27.08 278.4) |
| OKLab | oklab(22.963% -0.01555 -0.07552) |
| OKLCH | oklch(22.963% 0.07711 258.364) |
| Display P3 | color(display-p3 0.03482 0.10382 0.24137) |
| Rec. 2020 | color(rec2020 0.0288 0.04826 0.17812) |
| Adobe RGB | color(a98-rgb 0.07909 0.12844 0.25519) |
| ProPhoto RGB | color(prophoto-rgb 0.0829 0.08208 0.18005) |
| Linear sRGB | color(srgb-linear 0.00091 0.01096 0.05127) |
| XYZ D65 | color(xyz-d65 0.01355 0.01173 0.05006) |
| XYZ D50 | color(xyz-d50 0.01195 0.01117 0.03769) |
| SwiftUI | Color(red: 0.012, green: 0.106, blue: 0.251) |
| UIKit | UIColor(red: 0.012, green: 0.106, blue: 0.251, alpha: 1) |
| Flutter / Compose | Color(0xFF031B40) |
| Android XML | #031B40 |

## Facts

- Closest name: Maastricht Blue
- Hue family: Blue, soft very dark blue
- Closest Tailwind class: slate-900
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 17.01:1
- Contrast with black: 1.23:1

## Tints

#031b40, #182f52, #2e4464, #465977, #5e6f89, #77869c, #909daf, #abb5c3, #c6cdd7, #e2e6eb

## Shades

#031b40, #021636, #02112d, #010c24, #01081b, #000513, #00020b, #000105, #000001, #000000

## Tones

#031b40, #061c3d, #091c39, #0c1d36, #0f1d32, #111d2f, #141d2b, #161d28, #181d24, #1b1d21

## Harmonies

- Complementary: #031b40, #2d1700
- Split: #031b40, #380d00, #201e00
- Analogous: #031b40, #002235, #1d143e
- Triadic: #031b40, #39070e, #062400
- Tetradic: #031b40, #2b0e33, #2d1700, #062400
- Square: #031b40, #350823, #2d1700, #002617
- Monochromatic: #031b40, #000223, #000223, #203a62, #3f5b86

## Questions about #031b40

### What color is #031b40?

#031b40 is soft very dark blue. The closest named color is Maastricht Blue. In RGB it is rgb(3, 27, 64), in HSL hsl(216.39, 91.04%, 13.14%) and in OKLCH oklch(22.963% 0.07711 258.364).

### What colors go well with #031b40?

The complementary color of #031b40 is #2d1700. For a calmer combination use the analogous colors #002235 and #1d143e. The triadic partners are #39070e and #062400.

### Is white or black text more readable on #031b40?

White text reads better on #031b40: white gives a contrast ratio of 17.01:1 and black gives 1.23:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #031b40 a warm or cool color?

#031b40 is a cool color. In OKLCH its hue is 258 degrees, its lightness 23% and its chroma 0.077.