Laser
Open in tool →Laser green, violet and cyan — the synthwave/gaming set; keep the type near-white and let one neon own each screen.
Color
#40e6fc
#40e6fc
hex
#40e6fcrgb
rgb(64, 230, 252)hsl
hsl(187, 97%, 62%)oklch
oklch(0.852 0.133 208.3)Closest name: Aqua (#0ff0fe)Relative luminance 0.6471
Colors that go with #40e6fc
Charcoal, Deep Sky Blue and Taupe 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 #40e6fc: softer than #000 and cool enough to feel like part of the same palette.
Deep Sky Blue #00bfff
analogousshippedDeep Sky Blue is #40e6fc's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Taupe #483c32
shippedTaupe is paired with #40e6fc in 9 real palettes, including Boeing's brand system and Macaron, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Wheat #f5deb3
shippedWheat is paired with #40e6fc in 4 real palettes, including Mint Chip and Oatly's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Salmon #fa8072
complementarySalmon sits directly opposite #40e6fc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dark Orange #ff8c00
split-complementshippedDark Orange is a split-complement of #40e6fc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #40e6fc in 3 real palettes, including Formula 1's brand system and Frost & Ember, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #40e6fc in 3 real palettes, including Bluesky Social's brand system and Opensea's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #40e6fc
Tints & shades
Harmonies
Contrast
| #40e6fc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.51:1 | fail | fail | fail | |
Aaon black | 13.94:1 | 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 #40e6fc 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
Fonts for this mood
#40e6fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #40e6fc
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 #40e6fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/40e6fc-a2b8be-df4e83-1f262d-e9f1ee?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