# #687bbc color: Ultramarine Blue

#687bbc is rgb(104, 123, 188) in RGB and oklch(59.561% 0.10212 270.674) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/687bbc

## Formats

| Format | Value |
| --- | --- |
| HEX | #687bbc |
| RGB | rgb(104, 123, 188) |
| HSL | hsl(226.43, 38.53%, 57.25%) |
| HSB / HSV | hsv(226.43 44.68% 73.73%) |
| HWB | hwb(226.43 40.78% 26.27%) |
| CMYK | cmyk(45% 35% 0% 26%) |
| Lab | lab(52.21 6.16 -36.89) |
| LCH | lch(52.21 37.4 279.48) |
| OKLab | oklab(59.561% 0.0012 -0.10211) |
| OKLCH | oklch(59.561% 0.10212 270.674) |
| Display P3 | color(display-p3 0.42228 0.48011 0.71837) |
| Rec. 2020 | color(rec2020 0.40097 0.43041 0.6834) |
| Adobe RGB | color(a98-rgb 0.42892 0.47891 0.72321) |
| ProPhoto RGB | color(prophoto-rgb 0.41948 0.40986 0.65028) |
| Linear sRGB | color(srgb-linear 0.13843 0.19807 0.50289) |
| XYZ D65 | color(xyz-d65 0.21868 0.20739 0.50429) |
| XYZ D50 | color(xyz-d50 0.2086 0.20328 0.38027) |
| SwiftUI | Color(red: 0.408, green: 0.482, blue: 0.737) |
| UIKit | UIColor(red: 0.408, green: 0.482, blue: 0.737, alpha: 1) |
| Flutter / Compose | Color(0xFF687BBC) |
| Android XML | #687BBC |

## Facts

- Closest name: Ultramarine Blue
- Hue family: Indigo, soft indigo
- Closest Tailwind class: slate-500
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 4.08:1
- Contrast with black: 5.15:1

## Tints

#687bbc, #7688c3, #8495ca, #93a2d1, #a1afd8, #b0bcdf, #c0c9e5, #cfd7ec, #dfe4f2, #eff1f9

## Shades

#687bbc, #596aa3, #4b5a8b, #3e4a73, #303a5d, #242c47, #181e32, #0c101f, #04050d, #000102

## Tones

#687bbc, #6a7cb6, #6c7cb0, #6f7daa, #717da4, #737e9e, #757e98, #787e92, #7a7f8c, #7c7f85

## Harmonies

- Complementary: #687bbc, #967c2c
- Split: #687bbc, #ab6f3a, #76883e
- Analogous: #687bbc, #3f86b6, #8970b2
- Triadic: #687bbc, #b46659, #4d905f
- Tetradic: #687bbc, #a2689b, #967c2c, #4d905f
- Square: #687bbc, #b0647c, #967c2c, #1a9282
- Monochromatic: #687bbc, #293671, #475896, #8ba0e4, #b0c6ff

## Questions about #687bbc

### What color is #687bbc?

#687bbc is soft indigo. The closest named color is Ultramarine Blue. In RGB it is rgb(104, 123, 188), in HSL hsl(226.43, 38.53%, 57.25%) and in OKLCH oklch(59.561% 0.10212 270.674).

### What colors go well with #687bbc?

The complementary color of #687bbc is #967c2c. For a calmer combination use the analogous colors #3f86b6 and #8970b2. The triadic partners are #b46659 and #4d905f.

### Is white or black text more readable on #687bbc?

White text reads better on #687bbc: white gives a contrast ratio of 4.08:1 and black gives 5.15:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #687bbc a warm or cool color?

#687bbc is a cool color. In OKLCH its hue is 271 degrees, its lightness 59.6% and its chroma 0.102.