How to pick from the 17 built-in schemes

Turan ships 17 colour schemes in four groups. This page helps you choose one in a single pass.

Group	Count	In one line
Eye care	7	The default choice for long reading; soft and low-saturation
Iridescent	6	Frosted glass and blobs; looks first
Dark	2	The whole page goes dark, for night use
High contrast	2	Strong colour, best in short bursts

1. Eye care, 7 schemes: the everyday pick

Scheme	Look	Best for
Dawn Eye Care	Blue-to-orange gradient, like early morning light	All-round use; the default night scheme
Green Field Warm Sun	Three-stop gradient: green → peach → warm yellow	Daytime; the default day scheme
Warm Paper	Cream paper tone	Long articles, novels
Honey Dusk	Warm amber	Early evening, warm without glare
Soft Amber Night	Dimmed soft amber	Late night
Sage Mist	Pale matcha green	When you want to feel awake without a cold cast
Misty Veil	A very light grey-blue white	When you want a change that is barely noticeable

Dawn Eye Care

Warm Paper

If you cannot decide, start with Dawn Eye Care, then fine-tune the opacity as described further down.

2. Iridescent, 6 schemes: frosted glass and blobs

This group does not use a gradient overlay; it changes how the page itself looks.

Scheme	Effect
Iridescent Frosted Glass	Panels, cards and controls all become frosted glass, with colour blobs behind them
Iridescent Frosted Glass (No Button FX)	Frosted blobs in the background, but inputs, buttons and selects keep the site's native look
Iridescent Blobs	Background only: four colour blobs drift slowly, no page element is touched
Obsidian Night	The dark version of the frosted glass; the page is dimmed overall
Obsidian Night (No Button FX)	Dark blob background with native controls preserved
Obsidian Blobs	Dark blob background, page elements untouched

"No Button FX" versus "Blobs": the first still turns panels into glass, the second does not touch panels at all and only swaps the background. If a site feels over-restyled, step down to the latter.

Iridescent Frosted Glass

Obsidian Night

3. Dark, 2 schemes

These two darken the whole page by inverting it rather than laying a translucent black veil over it — which is exactly why the text stays legible.

Scheme	How it works	Character
Smart invert	Inversion plus a hue rotation	Whitish pages go dark while some of the original hue survives, so the result looks natural
Invert overlay	White overlay plus difference blending	Precise inversion, black and white stay distinct

Both work best at night. Note: with the dark schemes, opacity is not part of the effect.

Smart invert

4. High contrast, 2 schemes

Scheme	Look
Cyber Blue	Deep indigo purple → bright cyan
Golden Sunset	Dark red → golden orange

Heavy on colour and hard to miss — good for short bursts or when you want a strong look, not recommended for long reading.

How it works: multiply tinting

Turan composites its gradient through multiply blending. In plain terms:

Light backgrounds → take on the tint
Dark text → barely affected, stays legible

So you get "tinted background, clear text" rather than the usual "veil over everything, text greys out with it". Measured body contrast is 7.4:1, above the 4.5:1 that WCAG AA requires.

This is also why Turan does not offer a "blend mode" selector: multiply turned out to be the only option that keeps both colour and readability, so it is fixed.

Adjusting opacity

Range 0–100%, default 30%
30–60% is the sweet spot: below 30% you hardly see anything, above 60% the background gets heavy
The slider supports mouse-wheel nudging; hold Shift for larger steps
The settings page has a live preview, so you can watch the result while dragging instead of switching back to the page

The live preview card on the settings home page

Why opacity is greyed out for the iridescent group

The strength of the frosted glass and blob schemes is fixed by their spec (75% opacity blobs plus a 60px blur) and does not read the opacity setting. Rather than let you drag a slider that does nothing, it is disabled on purpose.

To make the overall effect stronger or weaker, switch schemes or change the blob colours.

Decision table: pick one in 30 seconds

Your situation	Go with
Not sure, just trying	Dawn Eye Care at 40%
Daytime desk work, documents	Green Field Warm Sun at 35%
Novels, long articles	Warm Paper at 45%
Evening into the night	Honey Dusk / Soft Amber Night at 40%
Some character, but not distracting	Misty Veil at 30%
You want the effect to be obvious	Iridescent Frosted Glass / Iridescent Blobs
Bright screens hurt at night	Obsidian Night / Smart invert
Only on one particular site	Bind it with a per-site scheme

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