Color
#45b563
#45b563rgb(69, 181, 99)hsl(136, 45%, 49%)oklch(0.689 0.156 149.3)Colors that go with #45b563
Charcoal, Mustard Yellow and Royal 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 body-text near-black for #45b563: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Mustard Yellow #ffdb58
shippedMustard Yellow is paired with #45b563 in 4 real palettes, including Meadow and Citrus Grove, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #45b563 in 5 real palettes, including Khan Academy's brand system and Console Light, as the accent — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #45b563 in 10 real palettes, including Obsidian's brand system and Meadow, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Fuchsia #ff00ff
complementaryFuchsia sits directly opposite #45b563 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Medium Purple #9370db
split-complementshippedMedium Purple is a split-complement of #45b563: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cornflower Blue #6495ed
triadicshippedCornflower Blue completes a triad with #45b563 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Dark Olive Green #556b2f
shippedDark Olive Green is paired with #45b563 in 3 real palettes, including Undergrowth and Forest Floor, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #45b563
Tints & shades
Harmonies
Contrast
| #45b563 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.61:1 | fail | fail | fail | |
Aaon black | 8.04:1 | 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 #45b563 as the background.
Brands using this color
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 #45b563 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/45b563-a2bead-b959d4-1f2d29-ebf1e9?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