Color
#40aec9
#40aec9rgb(64, 174, 201)hsl(192, 56%, 52%)oklch(0.7 0.105 217.3)Colors that go with #40aec9
Charcoal, Terracotta and Amber 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 #40aec9: softer than #000 and cool enough to feel like part of the same palette.
Terracotta #e2725b
complementaryshippedTerracotta sits directly opposite #40aec9 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #40aec9 in 4 real palettes, including Blueprint and Salesforce's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #40aec9: 8 real palettes, including Coca-Cola's brand system and Open House, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #40aec9: 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 SoFi's brand system put Midnight Blue beside #40aec9, as the lead colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #40aec9: 4 real palettes, including First Snow and Calendly's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #40aec9 in 9 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour.
Real palettes that use #40aec9
Tints & shades
Harmonies
Contrast
| #40aec9 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.59:1 | fail | fail | fail | |
Aaon black | 8.12:1 | 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 #40aec9 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#40aec9 reads as cool, modern. 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 #40aec9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/40aec9-a2b5be-df4e77-1f242d-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