Color
#91c5a0
#91c5a0rgb(145, 197, 160)hsl(137, 31%, 67%)oklch(0.777 0.076 153.4)Colors that go with #91c5a0
Charcoal, Plum and 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 text near-black for #91c5a0: softer than #000 and cool enough to feel like part of the same palette.
Plum #dda0dd
complementaryshippedPlum sits directly opposite #91c5a0 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped6 real palettes, including Uber's brand system and Unity's brand system put Blue beside #91c5a0, as the accent.
Champagne #f7e7ce
shipped5 real palettes, including Forest Floor and Midnight Luxe put Champagne beside #91c5a0, as that palette's text colour.
Copper #b87333
shippedDesigners have shipped Copper with #91c5a0: 4 real palettes, including Clean Beauty and Desert Road, as the accent.
Crimson #dc143c
shippedCrimson is paired with #91c5a0 in 4 real palettes, including Tiffany & Co.'s brand system and Frost & Ember, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #91c5a0 in 4 real palettes, including Forest Floor and Undergrowth, as the supporting colour.
Hunter Green #355e3b
shippedHunter Green is paired with #91c5a0 in 6 real palettes, including Canopy and Pine & Birch, as the lead colour.
Real palettes that use #91c5a0
Tints & shades
Harmonies
Contrast
| #91c5a0 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.96:1 | fail | fail | fail | |
Aaon black | 10.7:1 | 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 #91c5a0 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 #91c5a0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/91c5a0-a2bead-bb59d4-1f2d29-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