Color
#4ea3b7
#4ea3b7rgb(78, 163, 183)hsl(191, 42%, 51%)oklch(0.671 0.087 215.3)Colors that go with #4ea3b7
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 #4ea3b7: softer than #000 and cool enough to feel like part of the same palette.
Terracotta #e2725b
complementaryshippedTerracotta sits directly opposite #4ea3b7 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 #4ea3b7 in 4 real palettes, including Beach Hut and Salesforce's brand system, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #4ea3b7: 4 real palettes, including Dusk and Clean Beauty, as the accent.
Crimson #dc143c
shippedCrimson is paired with #4ea3b7 in 4 real palettes, including Diner and Riot Games's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #4ea3b7: 5 real palettes, including Dusk and Open House, as the lead colour.
Midnight Blue #191970
shipped9 real palettes, including Ford's brand system and Confluent's brand system put Midnight Blue beside #4ea3b7, as the accent.
Peru #cd853f
split-complementshippedPeru is a split-complement of #4ea3b7: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Real palettes that use #4ea3b7
Tints & shades
Harmonies
Contrast
| #4ea3b7 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.9:1 | fail | fail | fail | |
Aaon black | 7.25:1 | 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 #4ea3b7 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
#4ea3b7 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 #4ea3b7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4ea3b7-a2b6be-df4e7a-1f252d-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