Color
#3aa1cb
#3aa1cbrgb(58, 161, 203)hsl(197, 58%, 51%)oklch(0.668 0.111 229.2)Colors that go with #3aa1cb
Charcoal, Tomato 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 #3aa1cb: softer than #000 and cool enough to feel like part of the same palette.
Tomato #ff6347
split-complementshippedTomato is a split-complement of #3aa1cb: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #3aa1cb in 8 real palettes, including Salesforce's brand system and Beach Hut, as the accent.
Blue #0000ff
shipped5 real palettes, including Unity's brand system and Qualcomm's brand system put Blue beside #3aa1cb, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #3aa1cb in 4 real palettes, including Diner and Riot Games's brand system, as the lead colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #3aa1cb in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #3aa1cb: 9 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour.
Midnight Blue #191970
shipped9 real palettes, including SoFi's brand system and Confluent's brand system put Midnight Blue beside #3aa1cb, as the accent.
Real palettes that use #3aa1cb
Tints & shades
Harmonies
Contrast
| #3aa1cb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.94:1 | fail | fail | fail | |
Aaon black | 7.14:1 | 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 #3aa1cb as the background.
Brands using this color
Fonts for this mood
#3aa1cb 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 #3aa1cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3aa1cb-9cb4c4-df4e6b-1f232d-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