Alternatives

Products that do what I built a theme engine for white-label apps using OKLCH color science does

I worked on many apps where each customer needs their own branded theme. The problem is that you can't just shift hue and call it a day. Yellow at 50% lightness looks completely different from blue at 50%. That's why I built this library to generate perceptually uniform themes. Zero dependencies, runs at runtime, outputs CSS vars, Tailwind tokens, SCSS, or JSON. Ships with presets for shadcn/ui and MUI. try it out quickly: npx hextimate "#006677"

1AO
An OKLCH-based perceptually uniform color system/theme builder▲5
I've been using a version of this internally for a few months but decided to polish it a little to finally deploy it. It's a color system generator that creates accessible, perceptually uniform color palettes using the OKLCH space. It takes one seed (primary) color, generates relative key colors from multiple color harmony schemes (analogous, complementary, etc) that are then used to create 26-step color ramps each. Shades from the ramps are then used to generate semantic color roles, or can be used for creating custom palettes. All colors are gamut-mapped to the sRGB gamut with chroma…
Nov 2025 · colorphreak.com
2IM
I Made JavaScript Color Conversion Library for LCH/Lab/XYZ/RGB/Hex/HSL▲55
2020 · github.com
3AC
A Color Palette Generator I Built For My Senior Thesis▲109
2014 · colormoo.com
4
UI Colorful▲143
Effortless Shadcn and Tailwind color theme generator
2024
5
Scale▲199
Playful color scales generator.
2018
6
ColorMagic▲175
Generate ideal color palettes with the power of AI
2023
7
Colicious▲204
A delicious color generator
2016
8
Color Schemr▲139
Generate your always aspiring color scheme
2016
9CU
Colors Used by Popular Sites▲179
2016 · paulhebertdesigns.com
10
HueWind▲80
A opinionated, cohesive palette generator for Tailwind CSS
2022
11VA
VSColors, a Visual Studio theme browser▲52
2021 · vscolors.com
12TA
Themer – a CLI for generating themes for all your tools▲135
2017 · github.com
13
Color Library▲116
Automated color separation
2016
14
colorSS▲98
Generate random CSS color palettes and get inspired
2022
15IC
IRIX – color scheme editor and color tools▲29
2020 · irix.app
16
Themery▲86
Build beautiful themes for your IDE
Apr 2026
17SP
Spectra – Python color scales made easy▲33
2015 · github.com
18AT
A theme color extracting library implemented in C▲25
2017 · github.com
19HC
HTML Color Codes — a powerful set of free color tools▲14
2015 · htmlcolorcodes.com
20ET
Experimental “Text-To-Color” engine I wrote for fun▲20
2015 · berkin.me
21DC
Distinct Color Palette generator using Red-Yellow-Blue colorspace▲18
2012 · afriggeri.github.com
22MP
Material Palette - Material Design color palette generator▲17
2014 · materialpalette.com
23IB
I built a tool to describe ~4.3B colors▲8
A simple tool I made over the week to explore and learn about different colors. You can select any color with any opacity #000000-FFFFFFFF (~4.3 billion colors/variants), and you can view a dedicated page detailing the color's closest name, conversions to Hex, RGB, CMYK, etc., shades, tints, tones, harmonies, opacities, and WCAG contrast compliance.
2022 · colorwaze.com
24TH
Themeable HN▲8
Hi HN, I needed a distraction from the new and scary thing I was working on this weekend, so I grabbed HN's stylesheet, extracted CSS variables for every colour it defined, then re-applied them back onto HN using its own selectors (plus some extras for bits of HN which are styled inline, and some separation between header and content styling), allowing it to be themed with variables. After using them to implement a dark mode (and a pure black variant for OLED), plugging everything into my existing HN browser extension which already lets you apply custom CSS, and making it handle theme…
Apr 2026 · github.com

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