# #643e1f color: Cassiterite Brown

#643e1f is rgb(100, 62, 31) in RGB and oklch(40.188% 0.06963 58.119) in OKLCH. Every other format, shade and contrast value is below.

Source: https://pickshade.com/color/643e1f

## Formats

| Format | Value |
| --- | --- |
| HEX | #643e1f |
| RGB | rgb(100, 62, 31) |
| HSL | hsl(26.96, 52.67%, 25.69%) |
| HSB / HSV | hsv(26.96 69% 39.22%) |
| HWB | hwb(26.96 12.16% 60.78%) |
| CMYK | cmyk(0% 38% 69% 61%) |
| Lab | lab(30.33 14.75 25.89) |
| LCH | lch(30.33 29.79 60.33) |
| OKLab | oklab(40.188% 0.03678 0.05913) |
| OKLCH | oklch(40.188% 0.06963 58.119) |
| Display P3 | color(display-p3 0.37088 0.24982 0.14347) |
| Rec. 2020 | color(rec2020 0.28438 0.19446 0.08368) |
| Adobe RGB | color(a98-rgb 0.35864 0.2518 0.14868) |
| ProPhoto RGB | color(prophoto-rgb 0.2547 0.19961 0.11277) |
| Linear sRGB | color(srgb-linear 0.12744 0.04817 0.0137) |
| XYZ D65 | color(xyz-d65 0.07225 0.06254 0.02123) |
| XYZ D50 | color(xyz-d50 0.07609 0.06372 0.01624) |
| SwiftUI | Color(red: 0.392, green: 0.243, blue: 0.122) |
| UIKit | UIColor(red: 0.392, green: 0.243, blue: 0.122, alpha: 1) |
| Flutter / Compose | Color(0xFF643E1F) |
| Android XML | #643E1F |

## 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: 9.33:1
- Contrast with black: 2.25:1

## Tints

#643e1f, #735034, #826249, #91745e, #a18774, #b09a8a, #c0ada0, #cfc1b7, #dfd6cf, #efeae7

## Shades

#643e1f, #563519, #482b14, #3b230f, #2e1a0a, #221206, #160a03, #0b0401, #030100, #000000

## Tones

#643e1f, #613f24, #5f4029, #5c422d, #5a4332, #574436, #544539, #51463d, #4e4641, #4b4745

## Harmonies

- Complementary: #643e1f, #1e4d69
- Split: #643e1f, #00525c, #38466e
- Analogous: #643e1f, #693933, #584615
- Triadic: #643e1f, #0c5448, #4d3f69
- Tetradic: #643e1f, #454d1e, #1e4d69, #4d3f69
- Square: #643e1f, #2c5232, #1e4d69, #5c3a5b
- Monochromatic: #643e1f, #1f0500, #421f00, #885f40, #ad8262

## Questions about #643e1f

### What color is #643e1f?

#643e1f is soft dark brown. The closest named color is Cassiterite Brown. In RGB it is rgb(100, 62, 31), in HSL hsl(26.96, 52.67%, 25.69%) and in OKLCH oklch(40.188% 0.06963 58.119).

### What colors go well with #643e1f?

The complementary color of #643e1f is #1e4d69. For a calmer combination use the analogous colors #693933 and #584615. The triadic partners are #0c5448 and #4d3f69.

### Is white or black text more readable on #643e1f?

White text reads better on #643e1f: white gives a contrast ratio of 9.33:1 and black gives 2.25:1. WCAG AA asks for at least 4.5:1 for body text.

### Is #643e1f a warm or cool color?

#643e1f is a warm color. In OKLCH its hue is 58 degrees, its lightness 40.2% and its chroma 0.07.