Color converter
HEX to RGB565 and RGB565 to HEX
Type a HEX value or an RGB565 value, and the other one appears as you type. Every other notation of the same color is listed below, with each step of the maths.
The converter needs JavaScript. The values shown are for #D3AF37, and the worked examples below read without it.
Result
Inside sRGB
Showing the last color that converted.
- HEX
#D3AF37- RGB565
0xD567- RGB
rgb(211 175 55)- HSL
hsl(46.2 63.9% 52.2%)- OKLCH
oklch(76.55% 0.13847 91.55)
Color converters
Every format at once
The same color in every notation the converters know. Each name opens its own converter.
| Format | Value | Copy |
|---|---|---|
| Web and CSS | ||
| HEX CSS | #D3AF37 | |
| RGB CSS | rgb(211 175 55) | |
| sRGB (0 to 1) CSS | color(srgb 0.8275 0.6863 0.2157) | |
| Linear sRGB CSS | color(srgb-linear 0.65141 0.42869 0.0382) | |
| HSL CSS | hsl(46.2 63.9% 52.2%) | |
| HSV (HSB) Notation | hsv(46.2 73.9% 82.7%) | |
| HWB CSS | hwb(46.2 21.6% 17.3%) | |
| CSS color name CSS | goldenrodNearest ΔE00 5.00 | |
| Perceptual and CIE | ||
| OKLCH CSS | oklch(76.55% 0.13847 91.55) | |
| OKLab CSS | oklab(76.55% -0.00375 0.13842) | |
| CIELAB CSS | lab(73.19 4.7 62.68) | |
| CIE LCH CSS | lch(73.19 62.86 85.71) | |
| CIE XYZ (D65) CSS | color(xyz-d65 0.42882 0.44786 0.1) | |
| CIE XYZ (D50) CSS | color(xyz-d50 0.45463 0.45457 0.07797) | |
| CIE xyY Notation | xyY(0.43906 0.45855 0.44786) | |
| CIELUV Notation | luv(72.75 30.75 69) | |
| Wide gamut | ||
| Display P3 CSS | color(display-p3 0.80472 0.69157 0.30739) | |
| Rec. 2020 CSS | color(rec2020 0.74174 0.66017 0.25864) | |
| Adobe RGB (1998) CSS | color(a98-rgb 0.78545 0.68035 0.26584) | |
| ProPhoto RGB CSS | color(prophoto-rgb 0.67408 0.63343 0.26964) | |
| Print and paint | ||
| CMYK Notation | cmyk(0% 17.1% 73.9% 17.3%) | |
| RAL Classic Notation | RAL 1032 Broom yellowNearest ΔE00 3.02 | |
| Video | ||
| YCbCr (JPEG, BT.601) Notation | ycbcr(172.08 61.93 155.76) | |
| YCbCr (HD video, BT.709) Notation | ycbcr709(165.43 71.67 148.64) | |
| Code and platforms | ||
| Decimal integer Notation | 13872951 | |
| Android and Flutter ARGB Notation | 0xFFD3AF37 | |
| Android color int Notation | -2904265 | |
| SwiftUI and UIKit Notation | Color(red: 0.8275, green: 0.6863, blue: 0.2157) | |
| GLSL vec3 / vec4 Notation | vec3(0.8275, 0.6863, 0.2157) | |
| Embedded and terminal | ||
| RGB565 Notation | 0xD567Lossy | |
| ANSI 256 (xterm) Notation | 38;5;178Nearest ΔE00 3.11 | |
Every step of the maths
How HEX becomes RGB565
Each step shows the values for the color above, as the converter computes them.
- Start Hex digits
#D3AF37 - Back 8-bit channels
each pair of digits read as a byte211 175 55 - Then 5, 6 and 5 bits
R × 31 / 255, G × 63 / 255, B × 31 / 255, rounded; R << 11 | G << 5 | B0xD567
RGB565
About RGB565
RGB565 packs a color into 16 bits, 5 for red, 6 for green and 5 for blue, the format of many small TFT screens and microcontroller graphics libraries. Green gets the extra bit because the eye is most sensitive to it.
How this page writes it
- Each channel is scaled and rounded to the nearest level; reading back scales up again, so a color returns within one level of where it started.
Watch for
- Many libraries cut the low bits instead of rounding, which can differ from this page by one level.
- Byte order matters: some displays expect the two bytes swapped.
Worked examples
HEX to RGB565
Each row is the converter's own output, and a test re-runs every row.
| Color | HEX | RGB565 |
|---|---|---|
| White | #FFFFFF | 0xFFFF |
| Black | #000000 | 0x0000 |
| Middle gray | #808080 | 0x8410 |
| Red | #FF0000 | 0xF800 |
| Green | #00FF00 | 0x07E0 |
| Blue | #0000FF | 0x001F |
| Royal blue | #2563EB | 0x231D |
| Gold | #D3AF37 | 0xD567 |
Next
Related converters
Method
Sources and testing
- Conversions run in your browser with the site's shared color code; nothing you type is sent anywhere.
- An automated test recomputes every value on this page and reads every format back.
- Checked with a keyboard, the axe engine and Playwright in Chromium, in light and dark themes at phone and desktop widths. It has not yet been checked with a screen reader.
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