# #643b15 color: Cassiterite Brown

#643b15 is rgb(100, 59, 21) in RGB and oklch(39.451% 0.07724 59.908) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/643b15

## Formats

| Format | Value |
| --- | --- |
| HEX | #643b15 |
| RGB | rgb(100, 59, 21) |
| HSL | hsl(28.86, 65.29%, 23.73%) |
| HSB / HSV | hsv(28.86 79% 39.22%) |
| HWB | hwb(28.86 8.24% 60.78%) |
| CMYK | cmyk(0% 41% 79% 61%) |
| Lab | lab(29.45 16.07 30.41) |
| LCH | lch(29.45 34.39 62.15) |
| OKLab | oklab(39.451% 0.03873 0.06683) |
| OKLCH | oklch(39.451% 0.07724 59.908) |
| Display P3 | color(display-p3 0.36964 0.23882 0.11306) |
| Rec. 2020 | color(rec2020 0.28127 0.18393 0.05694) |
| Adobe RGB | color(a98-rgb 0.35667 0.24098 0.11737) |
| ProPhoto RGB | color(prophoto-rgb 0.2508 0.19131 0.09255) |
| Linear sRGB | color(srgb-linear 0.12744 0.04374 0.0075) |
| XYZ D65 | color(xyz-d65 0.06955 0.05892 0.0148) |
| XYZ D50 | color(xyz-d50 0.07349 0.06016 0.01138) |
| SwiftUI | Color(red: 0.392, green: 0.231, blue: 0.082) |
| UIKit | UIColor(red: 0.392, green: 0.231, blue: 0.082, alpha: 1) |
| Flutter / Compose | Color(0xFF643B15) |
| Android XML | #643B15 |

## 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: 9.64:1
- Contrast with black: 2.18:1

## Tints

#643b15, #734d2d, #825f43, #917259, #a1856f, #b09886, #c0ac9d, #cfc0b5, #dfd5cd, #efeae6

## Shades

#643b15, #563211, #48290c, #3b2108, #2e1905, #221103, #160902, #0b0401, #030100, #000000

## Tones

#643b15, #613c1c, #5f3e22, #5c3f27, #59402c, #564131, #534336, #50433a, #4d443e, #494542

## Harmonies

- Complementary: #643b15, #164b6b
- Split: #643b15, #00515d, #364370
- Analogous: #643b15, #6a352d, #564406
- Triadic: #643b15, #005348, #4d3c69
- Tetradic: #643b15, #414c16, #164b6b, #4d3c69
- Square: #643b15, #23522f, #164b6b, #5d365a
- Monochromatic: #643b15, #1c0400, #421c00, #885c38, #ad7f5a

## Questions about #643b15

### What color is #643b15?

#643b15 is soft dark brown. The closest named color is Cassiterite Brown. In RGB it is rgb(100, 59, 21), in HSL hsl(28.86, 65.29%, 23.73%) and in OKLCH oklch(39.451% 0.07724 59.908).

### What colors go well with #643b15?

The complementary color of #643b15 is #164b6b. For a calmer combination use the analogous colors #6a352d and #564406. The triadic partners are #005348 and #4d3c69.

### Is white or black text more readable on #643b15?

White text reads better on #643b15: white gives a contrast ratio of 9.64:1 and black gives 2.18:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #643b15 a warm or cool color?

#643b15 is a warm color. In OKLCH its hue is 60 degrees, its lightness 39.5% and its chroma 0.077.