Fintech Trust
Open in tool →Navy signals custody and stability; the green accent is money moving the right way. No red anywhere except errors.
Color
#31a57e
#31a57e
hex
#31a57ergb
rgb(49, 165, 126)hsl
hsl(160, 54%, 42%)oklch
oklch(0.648 0.118 166.2)Closest name: Cosmic Green (#30a877)Relative luminance 0.2907
Colors that go with #31a57e
Charcoal, Crimson and Denim 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 #31a57e: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #31a57e in 6 real palettes, including Diner and DuckDuckGo's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #31a57e: 5 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #31a57e: 4 real palettes, including Spline's brand system and Unity's brand system, as the lead colour.
Midnight Blue #191970
shipped7 real palettes, including Fintech Trust and Tide Pool put Midnight Blue beside #31a57e, as the text colour against it.
Royal Blue #4169e1
shippedRoyal Blue is paired with #31a57e in 7 real palettes, including Khan Academy's brand system and Console Light, as the accent.
Taupe #483c32
shippedTaupe is paired with #31a57e in 15 real palettes, including Undergrowth and Clean Beauty, as the surface under it.
Deep Pink #ff1493
complementaryDeep Pink sits directly opposite #31a57e 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 #31a57e
Tints & shades
Harmonies
Contrast
| #31a57e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.08:1 | fail | pass | fail | |
Aaon black | 6.81:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31a57e as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
mcpConnect your agent — build around #31a57e
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #31a57e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/31a57e-a2beb8-d459be-1f2c2d-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