Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#99dff4
#99dff4
hex
#99dff4rgb
rgb(153, 223, 244)hsl
hsl(194, 81%, 78%)oklch
oklch(0.864 0.076 218.6)Closest name: Blizzard Blue (#a3e3ed)Relative luminance 0.6608
Colors that go with #99dff4
Charcoal, Deep Sky Blue and Dark Salmon 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 #99dff4: softer than #000 and cool enough to feel like part of the same palette.
Deep Sky Blue #00bfff
analogousshippedDeep Sky Blue is #99dff4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Dark Salmon #e9967a
complementaryshippedDark Salmon sits directly opposite #99dff4 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Burlywood #deb887
shippedBurlywood is paired with #99dff4 in 5 real palettes, including Coastal and Velvet, as the accent.
Crimson #dc143c
shippedCrimson is paired with #99dff4 in 4 real palettes, including Frost & Ember and Tiffany & Co.'s brand system, as the accent.
Dark Olive Green #556b2f
shippedDark Olive Green shows up next to #99dff4 in 4 real palettes, including Oatmeal and Forest Floor, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #99dff4: 4 real palettes, including Nikon's brand system and UEFA's brand system, as the supporting colour.
Midnight Blue #191970
shipped5 real palettes, including Blue Mono and First Snow put Midnight Blue beside #99dff4, as the text colour against it.
Real palettes that use #99dff4
Tints & shades
Harmonies
Contrast
| #99dff4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.48:1 | fail | fail | fail | |
Aaon black | 14.22:1 | 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 #99dff4 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
#99dff4 reads as cool, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #99dff4
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 #99dff4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/99dff4-9cb6c4-df4e72-1f242d-e9f1ef?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