Ledger Dark
Open in tool →Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy.
Color
#30cf9f
#30cf9f
hex
#30cf9frgb
rgb(48, 207, 159)hsl
hsl(162, 62%, 50%)oklch
oklch(0.764 0.145 167.2)Closest name: mediumaquamarine (#66cdaa)Relative luminance 0.4776
Colors that go with #30cf9f
Charcoal, Hot Pink and Mustard Yellow 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 #30cf9f: softer than #000 and cool enough to feel like part of the same palette.
Hot Pink #ff69b4
complementaryshippedHot Pink sits directly opposite #30cf9f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Mustard Yellow #ffdb58
shipped4 real palettes, including Fresh Juice and Crayon Box put Mustard Yellow beside #30cf9f, as the supporting colour.
Taupe #483c32
shippedTaupe is paired with #30cf9f in 15 real palettes, including Crayon Box and WhatsApp's brand system, as the text colour against it.
Light Coral #f08080
split-complementshippedLight Coral is a split-complement of #30cf9f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #30cf9f in 3 real palettes, including DuckDuckGo's brand system and Formula 1's brand system, as the supporting colour.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #30cf9f in 3 real palettes, including 7-Eleven's brand system and Undergrowth, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #30cf9f: 3 real palettes, including Remix's brand system and Prime Video's brand system, as the lead colour.
Real palettes that use #30cf9f
Tints & shades
Harmonies
Contrast
| #30cf9f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.99:1 | fail | fail | fail | |
Aaon black | 10.55:1 | 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 #30cf9f as the background.
Brands using this color
Palettes built around it
mcpConnect your agent — build around #30cf9f
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 #30cf9f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/30cf9f-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