About
acbarth is a digital artist.
Physical paintings are limited by the pigments and tools that exist in the real world. With digital media, art can reach its fullest expression, limited only by creativity and technical ability.
I hand paint digital artwork using my own software, Northlight. With Northlight, I can express myself fully in digital media.
I paint using a scientifically accurate color model, OKLCH, based on human perception, with 64 bits of precision per pixel. Unlike other software that uses brushes based on stamps or physical simulations, I have designed my own brush engine based on signal processing and fractal mathematics. These tools let me produce paintings that realize my creative vision by combining thousands of individual brush strokes made by hand.
As a professional software engineer, I have worked on many widely used systems including Chrome, WebKit, Blink, Flutter, and Fuchsia. I have a Ph.D. in computer science from Stanford University and have published research papers on computer security, digital privacy, and computational photography. I have written Internet and web standards that are used ubiquitously in the digital world. I hold 11 patents for innovations in computer security.
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- @acbarth
- Bluesky
- @acbarth.bsky.social
- GitHub
- abarth
Accent // 450 nm
- Color
- 0.5010.306280°
- Wavelength λ
- 450 nm
- Source
- InGaN LED
- Found in
- White LEDs, LCD backlights
- Nobel Prize
- Physics 2014
- CMYK
- ΔE00 ≈ 16
- Physical pigments
- Out of gamut
- Contrast on ground
- 5.7 : 1
- Displays
- Primary for sRGB and P3
Every white LED light bulb and most LCD backlights use an LED that emits 450 nm light under a yellow phosphor, making this shade of blue the most common color emitted by screens worldwide. Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura won the 2014 Nobel Prize in Physics for inventing the efficient LED that produces this color. The color cannot be mixed from physical pigments, including the primaries used in typical commercial printing. However, the color is the blue primary for both sRGB and wide-gamut displays.