Color
#5bb399
#5bb399rgb(91, 179, 153)hsl(162, 37%, 53%)oklch(0.704 0.094 172)Colors that go with #5bb399
Charcoal, Cornflower Blue and Dark Olive Green 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 #5bb399: softer than #000 and cool enough to feel like part of the same palette.
Cornflower Blue #6495ed
triadicshippedCornflower Blue completes a triad with #5bb399 — 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 shows up next to #5bb399 in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #5bb399: 4 real palettes, including Unity's brand system and Spline's brand system, as the lead colour.
Midnight Blue #191970
shipped7 real palettes, including Fintech Trust and Ford's brand system put Midnight Blue beside #5bb399, as the text colour against it.
Mustard Yellow #ffdb58
shipped5 real palettes, including Diner and Crayon Box put Mustard Yellow beside #5bb399, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #5bb399: 4 real palettes, including Stone and First Snow, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #5bb399 in 6 real palettes, including Brilliant's brand system and Khan Academy's brand system, as the accent.
Real palettes that use #5bb399
Tints & shades
Harmonies
Contrast
| #5bb399 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.51:1 | fail | fail | fail | |
Aaon black | 8.35:1 | 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 #5bb399 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 #5bb399 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5bb399-a2beb9-d459b9-1f2b2d-e9f1eb?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