# #663c19 color: Cassiterite Brown

#663c19 is rgb(102, 60, 25) in RGB and oklch(39.984% 0.07648 57.655) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/663c19

## Formats

| Format | Value |
| --- | --- |
| HEX | #663c19 |
| RGB | rgb(102, 60, 25) |
| HSL | hsl(27.27, 60.63%, 24.9%) |
| HSB / HSV | hsv(27.27 75.49% 40%) |
| HWB | hwb(27.27 9.8% 60%) |
| CMYK | cmyk(0% 41% 75% 60%) |
| Lab | lab(30.05 16.59 29.02) |
| LCH | lch(30.05 33.43 60.25) |
| OKLab | oklab(39.984% 0.04092 0.06461) |
| OKLCH | oklch(39.984% 0.07648 57.655) |
| Display P3 | color(display-p3 0.37698 0.24294 0.12522) |
| Rec. 2020 | color(rec2020 0.28839 0.18839 0.06688) |
| Adobe RGB | color(a98-rgb 0.36332 0.24458 0.12961) |
| ProPhoto RGB | color(prophoto-rgb 0.2569 0.19517 0.10043) |
| Linear sRGB | color(srgb-linear 0.13287 0.04519 0.00972) |
| XYZ D65 | color(xyz-d65 0.07271 0.06127 0.01719) |
| XYZ D50 | color(xyz-d50 0.07673 0.06254 0.01318) |
| SwiftUI | Color(red: 0.4, green: 0.235, blue: 0.098) |
| UIKit | UIColor(red: 0.4, green: 0.235, blue: 0.098, alpha: 1) |
| Flutter / Compose | Color(0xFF663C19) |
| Android XML | #663C19 |

## Facts

- Closest name: Cassiterite Brown
- Hue family: Brown, soft dark brown
- Closest Tailwind class: yellow-900
- Gamut: Inside sRGB: displays the same on any screen.
- Contrast with white: 9.44:1
- Contrast with black: 2.23:1

## Tints

#663c19, #754e30, #846045, #93735b, #a28671, #b19988, #c1ad9f, #d0c1b6, #e0d5ce, #efeae6

## Shades

#663c19, #583314, #4a2a10, #3c210b, #2f1907, #231104, #170a02, #0c0401, #040100, #000000

## Tones

#663c19, #633d1f, #603f25, #5e402a, #5b412f, #584333, #554438, #51453c, #4e4640, #4b4744

## Harmonies

- Complementary: #663c19, #154d6c
- Split: #663c19, #00535d, #364571
- Analogous: #663c19, #6b3630, #59450a
- Triadic: #663c19, #005547, #4d3e6b
- Tetradic: #663c19, #444d17, #154d6c, #4d3e6b
- Square: #663c19, #28532f, #154d6c, #5d385d
- Monochromatic: #663c19, #1f0400, #441c00, #8a5d3b, #b0815d

## Questions about #663c19

### What color is #663c19?

#663c19 is soft dark brown. The closest named color is Cassiterite Brown. In RGB it is rgb(102, 60, 25), in HSL hsl(27.27, 60.63%, 24.9%) and in OKLCH oklch(39.984% 0.07648 57.655).

### What colors go well with #663c19?

The complementary color of #663c19 is #154d6c. For a calmer combination use the analogous colors #6b3630 and #59450a. The triadic partners are #005547 and #4d3e6b.

### Is white or black text more readable on #663c19?

White text reads better on #663c19: white gives a contrast ratio of 9.44:1 and black gives 2.23:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #663c19 a warm or cool color?

#663c19 is a warm color. In OKLCH its hue is 58 degrees, its lightness 40% and its chroma 0.076.