Color
#28a8af
#28a8afrgb(40, 168, 175)hsl(183, 63%, 42%)oklch(0.669 0.105 200.6)Colors that go with #28a8af
Charcoal, Tomato and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #28a8af: softer than #000 and cool enough to feel like part of the same palette.
Tomato #ff6347
complementaryshippedTomato sits directly opposite #28a8af on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cornflower Blue #6495ed
analogousshippedCornflower Blue is #28a8af's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Crimson #dc143c
shippedCrimson is paired with #28a8af in 4 real palettes, including Diner and Riot Games's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #28a8af: 5 real palettes, including Peacock and Gopro's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #28a8af: 5 real palettes, including Unity's brand system and Studio Grey, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Ford's brand system and Confluent's brand system put Midnight Blue beside #28a8af, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #28a8af in 4 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour.
Real palettes that use #28a8af
Tints & shades
Harmonies
Contrast
| #28a8af as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.87:1 | fail | fail | fail | |
Aaon black | 7.31:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28a8af as the background.
Brands using this color
Fonts for this mood
#28a8af reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #28a8af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/28a8af-a2b9be-d4598e-1f262d-e9f1ee?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md