Color
#1bb9e4
#1bb9e4rgb(27, 185, 228)hsl(193, 79%, 50%)oklch(0.731 0.132 223.1)Colors that go with #1bb9e4
Charcoal, Denim and Dodger 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 #1bb9e4: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
shippedDesigners have shipped Denim with #1bb9e4: 7 real palettes, including Venmo's brand system and Coca-Cola's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #1bb9e4: 4 real palettes, including Figma's brand system and Patreon's brand system, as the accent.
Midnight Blue #191970
shipped8 real palettes, including Confluent's brand system and Kraken's brand system put Midnight Blue beside #1bb9e4, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #1bb9e4 in 7 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #1bb9e4 in 10 real palettes, including Cursor's brand system and Astro's brand system, as the text colour against it.
Coral #ff7f50
complementaryCoral sits directly opposite #1bb9e4 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Goldenrod #daa520
split-complementshippedGoldenrod is a split-complement of #1bb9e4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #1bb9e4
Tints & shades
Harmonies
Contrast
| #1bb9e4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.31:1 | fail | fail | fail | |
Aaon black | 9.11:1 | 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 #1bb9e4 as the background.
Brands using this color
Fonts for this mood
#1bb9e4 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 #1bb9e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1bb9e4-a2b5be-df4e75-1f242d-e9f1ef?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