# #1a3d4e color: Subterranean River

#1a3d4e is rgb(26, 61, 78) in RGB and oklch(34.219% 0.05013 231.891) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/1a3d4e

## Formats

| Format | Value |
| --- | --- |
| HEX | #1a3d4e |
| RGB | rgb(26, 61, 78) |
| HSL | hsl(199.62, 50%, 20.39%) |
| HSB / HSV | hsv(199.62 66.67% 30.59%) |
| HWB | hwb(199.62 10.2% 69.41%) |
| CMYK | cmyk(67% 22% 0% 69%) |
| Lab | lab(23.79 -8.57 -14.44) |
| LCH | lch(23.79 16.79 239.3) |
| OKLab | oklab(34.219% -0.03094 -0.03944) |
| OKLCH | oklch(34.219% 0.05013 231.891) |
| Display P3 | color(display-p3 0.13713 0.23602 0.29936) |
| Rec. 2020 | color(rec2020 0.11027 0.17162 0.23821) |
| Adobe RGB | color(a98-rgb 0.17143 0.24819 0.3079) |
| ProPhoto RGB | color(prophoto-rgb 0.14668 0.17617 0.23112) |
| Linear sRGB | color(srgb-linear 0.01033 0.04667 0.07619) |
| XYZ D65 | color(xyz-d65 0.0347 0.04107 0.07818) |
| XYZ D50 | color(xyz-d50 0.03338 0.04037 0.05908) |
| SwiftUI | Color(red: 0.102, green: 0.239, blue: 0.306) |
| UIKit | UIColor(red: 0.102, green: 0.239, blue: 0.306, alpha: 1) |
| Flutter / Compose | Color(0xFF1A3D4E) |
| Android XML | #1A3D4E |

## Facts

- Closest name: Subterranean River
- Hue family: Sky blue, soft dark sky blue
- Closest Tailwind class: slate-700
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 11.53:1
- Contrast with black: 1.82:1

## Tints

#1a3d4e, #304e5e, #45606f, #5a7380, #708591, #8799a3, #9eacb4, #b5c1c7, #cdd5d9, #e6eaec

## Shades

#1a3d4e, #153443, #102b38, #0c222d, #071a23, #041219, #020a0f, #010407, #000102, #000000

## Tones

#1a3d4e, #1e3d4c, #223c4a, #253c48, #283b46, #2b3b43, #2e3b41, #313a3f, #343a3d, #36393b

## Harmonies

- Complementary: #1a3d4e, #4d311f
- Split: #1a3d4e, #502e2d, #453618
- Analogous: #1a3d4e, #104044, #2a3853
- Triadic: #1a3d4e, #4d2d3b, #393b1b
- Tetradic: #1a3d4e, #393450, #4d311f, #393b1b
- Square: #1a3d4e, #453048, #4d311f, #293f27
- Monochromatic: #1a3d4e, #000715, #001f2e, #3b5e70, #5d8194

## Questions about #1a3d4e

### What color is #1a3d4e?

#1a3d4e is soft dark sky blue. The closest named color is Subterranean River. In RGB it is rgb(26, 61, 78), in HSL hsl(199.62, 50%, 20.39%) and in OKLCH oklch(34.219% 0.05013 231.891).

### What colors go well with #1a3d4e?

The complementary color of #1a3d4e is #4d311f. For a calmer combination use the analogous colors #104044 and #2a3853. The triadic partners are #4d2d3b and #393b1b.

### Is white or black text more readable on #1a3d4e?

White text reads better on #1a3d4e: white gives a contrast ratio of 11.53:1 and black gives 1.82:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #1a3d4e a warm or cool color?

#1a3d4e is a cool color. In OKLCH its hue is 232 degrees, its lightness 34.2% and its chroma 0.05.