About Us

Color theory,
taught properly.

Clost Renvak is an online education platform focused on color theory in web design — quizzes, tests, and instant feedback for students across Ukraine.

Color theory lesson panel at Clost Renvak

Where the platform came from

Color theory rarely gets its own dedicated space in web design curricula. It gets folded into broader courses, explained in two slides, then forgotten. Clost Renvak started in 2017 to change that — one subject, studied properly, with tools that actually test whether you understand it.

Geography makes quality education uneven. A student in a regional city often has fewer options than one in a capital. The platform runs entirely online so that a learner in Zaporizhzhia and one in Kyiv sit through the same quiz, receive the same instant feedback, and measure their understanding against the same standard.

The format is deliberately interactive. Reading about hue relationships is passive — making decisions under time pressure and seeing where your reasoning broke down is not. Every quiz and assignment on the platform is built around that idea.

Platform at a glance

8+ Years running

24 Interactive modules

340+ Quiz questions

17 Regions reached

Who runs the platform

Clost Renvak instructors working on course content

Small team, deep focus

Clost Renvak is run by a small group of web designers and educators who have worked professionally with color in digital products. They are not generalists — each person on the team concentrates on one part of the color theory curriculum.

Oresta Halvatiuk

Lead Color Theory Instructor

Bohdan Ferents

Quiz Design & Gamification

Vira Skrypnychenko

Platform Development

How the learning is structured

Short, testable units

Each module covers one concept — say, simultaneous contrast or analogous palettes — and ends with a timed quiz. Feedback arrives immediately, showing which answers were wrong and why.

Score tracking over time

Scores are logged so learners can see whether repeat attempts actually improved their results. Progress is measured by accuracy across multiple sessions, not by time spent watching videos.

Applied over abstract

Questions use real interface screenshots and color swatches, not diagram labels. A learner decides whether a palette works for readability — the same judgment they would make on an actual project.

Interactive quiz slide illustrating color contrast evaluation

A live quiz testing contrast ratio judgment