HEX8 to HWB | Color Code Converter | Color Conversion
Online HEX8 to HWB tool: enter a HEX8 color value to convert it to HWB in real time, with one-click copy of the result. Free and no registration required.
HEX8Enter or adjust the color values
rgba(255, 87, 51, 1)
HWB
hwb(11 20% 0%)
H
11
W
20
B
0
All Color Conversion Combinations
132 itemsAbout HEX8 to HWB
HEX8 to HWB is a free online tool that converts HEX8 to HWB, helping you quickly convert colors and switch between formats in web design, front-end development, and graphic design. HEX8 is Adds two transparency digits on top of HEX, in the form #RRGGBBAA. HWB is Describes color through hue (H), whiteness (W), and blackness (B); a format introduced in CSS Color 4. At its core, HEX8 to HWB takes a color value expressed in HEX8 and converts it into HWB using a mathematical algorithm. The tool shows the result as both a visual color swatch and a complete CSS string, and you can copy it to the clipboard with a single click—no manual calculation or lookup tables required. This makes color code conversion fast, accurate, and reproducible, and it is suitable for designers, front-end developers, UI engineers, and anyone else who works with color.
What Is HEX8 to HWB
HEX8 is a hexadecimal color with transparency, in the form #RRGGBBAA for a total of 8 digits. The first 6 digits are the same as a regular HEX, and the last 2 represent the Alpha transparency. HWB describes color through hue (H), whiteness (W), and blackness (B). It is a format added in CSS Color 4. H is 0-360°, and W and B are 0-100%. Take the first 6 digits, convert to RGB, then to HSV, and finally compute W and B according to the HWB definition, discarding Alpha.
How to Use HEX8 to HWB
Using this HEX8 to HWB tool is very simple and takes just three steps. First, select HEX8 from the "Source Color Unit" dropdown on the left (it is selected by default), and enter the HEX8 value you want to convert in the input card. Second, select HWB from the "Target Color Unit" dropdown on the right; the tool instantly calculates and displays the corresponding HWB value, along with a color swatch preview and the complete CSS string, so you can confirm the color and format at a glance. Third, once you are happy with the result, click the "Copy" button to copy the HWB value to your clipboard and paste it straight into your code or design software. If you picked the wrong source or target unit, click the "⇄" button in the middle to swap them with one click. The whole process requires no registration and no data upload—all calculations run locally in your browser.
Use Cases for HEX8 to HWB
Use this when a modern CSS project needs HWB. Modern CSS, gradients that need transparency, and design systems that express brand colors with transparency. Modern CSS projects, color-tuning tasks that need intuitive hue adjustment, and color schemes that complement HSL.
How HEX8 to HWB Works
Take the first 6 digits, convert to RGB, then to HSV, and finally compute W and B according to the HWB definition, discarding Alpha. HEX8 is essentially the hexadecimal form of RGBA: the three RGB channels and the Alpha channel are each converted to two hexadecimal digits, for example rgba(255,87,51,0.5) corresponds to #FF573380. The intuitive meaning of HWB is: first choose a pure hue, then add white (to lighten) or black (to darken) to it. W and B cannot both exceed 100%, and when their sum exceeds 100% they are normalized proportionally.
Tips for Using HEX8 to HWB
Alpha is discarded; the HWB part matches a regular HEX to HWB conversion. HEX8 is more compact than RGBA and works well in CSS variables, but it is less readable than RGBA, so teams should add comments when collaborating. HWB is closer to the intuition of "adding white or black to paint" than HSL. W=B=0 gives a pure color, and W+B=100% gives gray.
Frequently Asked Questions (FAQ)
Does HEX8 to HWB keep the transparency?
No. HWB contains no transparency.
Is the H of HWB the same as the H of HSL?
Yes, both are 0-360°.
Which browsers support HWB?
Modern browsers such as Chrome 101+, Safari 15+, and Firefox 96+.
How is the transparency of HEX8 calculated?
The last two digits are the hexadecimal value of Alpha: FF means fully opaque, 80 means about 50%, and 00 means fully transparent.
Do all browsers support HEX8?
All major modern browsers support it, including Chrome, Firefox, Safari, and Edge. IE does not.
What is the difference between HWB and HSL?
HSL controls lightness through the L channel, while HWB controls lightening and darkening separately through whiteness W and blackness B; the latter is closer to the physical experience of mixing paint.
Which browsers support HWB?
Modern browsers such as Chrome 101+, Safari 15+, and Firefox 96+ support it; older browsers may not.
Can I convert in the opposite direction?
Yes. You can go directly to the "HWB to HEX8" page, or click the "⇄" swap button in the middle of the current page to exchange the source and target units and convert in the opposite direction. The reverse conversion is just as precise, because the color conversion math is reversible.
Can I use the conversion results commercially?
Yes. Color values are numerical information and involve no copyright issues, so you are free to use the conversion results in websites, apps, design work, or commercial projects without authorization or attribution. Do note, however: if the original color comes from material that someone else holds the copyright to, using the color itself is unrestricted, but the copyright to the original material still belongs to its author.