Circuit
Open in tool →Violet plus cyan is the current AI-product signal — pair it with pure black type to keep it from going candy.
Color
#2fb5da
#2fb5da
hex
#2fb5dargb
rgb(47, 181, 218)hsl
hsl(193, 70%, 52%)oklch
oklch(0.72 0.121 221.4)Closest name: Aquarius (#2db0ce)Relative luminance 0.3871
Colors that go with #2fb5da
Charcoal, Denim and Midnight 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 #2fb5da: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
shippedDenim is paired with #2fb5da in 6 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #2fb5da in 7 real palettes, including Confluent's brand system and Kraken's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #2fb5da in 9 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #2fb5da in 9 real palettes, including Cursor's brand system and Astro's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Coral #ff7f50
complementaryCoral sits directly opposite #2fb5da 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 #2fb5da: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #2fb5da in 3 real palettes, including Blueprint and Salesforce's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #2fb5da
Tints & shades
Harmonies
Contrast
| #2fb5da as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.4:1 | fail | fail | fail | |
Aaon black | 8.74:1 | 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 #2fb5da as the background.
Brands using this color
Palettes built around it
Deep Water
Open in tool →Cyan and mid-blue on abyss navy with a foam highlight — the ocean at depth; the darker the surface, the brighter the water.
Lagoon
Open in tool →Turquoise and teal with a sand-yellow on white — shallow tropical water; the deep teal text is the reef.
Fonts for this mood
#2fb5da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #2fb5da
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #2fb5da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/2fb5da-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