Color Brightness in Google Sheets & Excel — =VERVE("colorbrightness", "FF5733")

What this pulls

Check color contrast by the row. =VERVE("colorbrightness", A2) returns WCAG luminance, light/dark and a recommended text color — Sheets or Excel.

It's one of 250+ live sources you reach with a single =VERVE() function — served from APIVerve's production data engine, billed at 1 credit per resolved cell, and refreshed on whatever cadence you set. No API keys to wrangle, no scripts, no exports.

See it in a cell

A real example — the input you type, and the values you can pull from it. Click any cell to see the formula behind it.

colorbrightness.xlsxsample data

B2fx=VERVE("colorbrightness", A2, "r")

Hex

Is light

FF5733

255

FALSE

click any cell to see its formula1 credit / cell

Ways to use it

Look up facts in the grid

Fill =VERVE("colorbrightness", "FF5733") beside your keys and pull the reference value for each into its own cell — one trusted lookup per row.

Standardize a dataset

Replace hand-maintained lookup tables with a live one so your reference values never drift out of date.

Join to your data

Use Color Brightness's output as a lookup column your other formulas can VLOOKUP or reference directly.

Use it in your sheet

The same function works in both apps — install once, sign in with your key, and type it into any cell.

Google SheetsAdd-on

Install from the Workspace Marketplace, then drop the formula into a cell. Autocomplete suggests the source and its fields.

=VERVE("colorbrightness", "FF5733")

Microsoft ExcelAdd-in

Same source, same arguments, same key — in Excel on desktop, the web, or mobile. Excel namespaces it as VERVE.CALL. Drag to fill a whole column.

=VERVE.CALL("colorbrightness", "FF5733")

Fields you can pull

Add a field name as the last argument to land just that value in the cell.

Hex
=VERVE("colorbrightness", "FF5733", "field", "hex")
Rgb
=VERVE("colorbrightness", "FF5733", "field", "rgb")
Rgb.r
=VERVE("colorbrightness", "FF5733", "field", "rgb.r")
Rgb.g
=VERVE("colorbrightness", "FF5733", "field", "rgb.g")
Rgb.b
=VERVE("colorbrightness", "FF5733", "field", "rgb.b")
LuminancePremium
=VERVE("colorbrightness", "FF5733", "field", "luminance")
Perceived brightnessPremium
=VERVE("colorbrightness", "FF5733", "field", "perceived_brightness")
YiqPremium
=VERVE("colorbrightness", "FF5733", "field", "yiq")
Is light
=VERVE("colorbrightness", "FF5733", "field", "is_light")
Is dark
=VERVE("colorbrightness", "FF5733", "field", "is_dark")
Brightness category
=VERVE("colorbrightness", "FF5733", "field", "brightness_category")
Recommended text colorPremium
=VERVE("colorbrightness", "FF5733", "field", "recommended_text_color")

Premium marks data included on paid plans. On the Free plan a marked field is withheld and a marked input is ignored — either way the cell reads #PREMIUM(name) instead of a value, so a gated answer can never be mistaken for a real one. Everything unmarked works on every plan. Compare plans

Color Brightness, answered

Everything you need to wire it into a sheet.

How do I pull Color Brightness into a spreadsheet?

Install the VerveSheets add-on, sign in with your key, and type =VERVE("colorbrightness", "FF5733") into any cell. The same function works in Google Sheets and Excel — no scripts, no API wiring.

How many credits does each Color Brightness cell cost?

Each resolved cell costs 1 credit. Filling a column of ten rows costs ten times that; a cell only re-bills when it actually refreshes, so a static sheet doesn't keep charging.

Can I fill a whole column at once?

Yes. Reference a range instead of a single cell — e.g. point Color Brightness at A2:A50 — and it returns a value for every row in one call, or just drag =VERVE("colorbrightness", "FF5733") down like any spreadsheet function.

Does Color Brightness work in Excel as well as Google Sheets?

Yes. It's the same =VERVE() function with the same arguments and the same key in both — build a sheet in one and it behaves identically in the other.

How current is the data?

Color Brightness is served live from APIVerve's production data engine, and cells recalculate on the refresh cadence you choose — every open, hourly, or every 30 minutes.

Where does the data come from, and what shows on my bill?

VerveSheets runs on APIVerve, our production data engine; Color Brightness is one of 300+ sources on the same key. Invoices and card statements show APIVERVE.

Color Brightness

Look up facts in the grid

Standardize a dataset

Join to your data

Color Brightness, answered

Put Color Brightness in your next spreadsheet. Add the extension, paste the formula, and the cell keeps itself current.

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