Color
#45a591
#45a591rgb(69, 165, 145)hsl(167, 41%, 46%)oklch(0.659 0.095 177.2)Colors that go with #45a591
Charcoal, Copper and Crimson 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 #45a591: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
shippedCopper is paired with #45a591 in 6 real palettes, including Clean Beauty and Wellness, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #45a591 in 5 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Dark Olive Green #556b2f
shippedDark Olive Green is paired with #45a591 in 5 real palettes, including Undergrowth and Forest Floor, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #45a591 in 7 real palettes, including Peacock and Open House, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #45a591 in 8 real palettes, including Tide Pool and Fintech Trust, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #45a591 in 5 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Deep Pink #ff1493
complementaryDeep Pink sits directly opposite #45a591 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #45a591
Tints & shades
Harmonies
Contrast
| #45a591 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.98:1 | fail | fail | fail | |
Aaon black | 7.04:1 | 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 #45a591 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #45a591 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/45a591-a2bebb-d459af-1f2a2d-e9f1ec?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