Deep Water
Open in tool →Cyan and mid-blue on abyss navy with a foam highlight — the ocean at depth; the darker the surface, the brighter the water.
Color
#cdefef
#cdefef
hex
#cdefefrgb
rgb(205, 239, 239)hsl
hsl(180, 52%, 87%)oklch
oklch(0.928 0.035 196.6)Closest name: Castle in the Sky (#d1eaed)Relative luminance 0.8094
Colors that go with #cdefef
Charcoal, Lilac and Sand 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 #cdefef: softer than #000 and cool enough to feel like part of the same palette.
Lilac #c8a2c8
split-complementshippedLilac is a split-complement of #cdefef: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sand #c2b280
triadicshippedSand completes a triad with #cdefef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sky Blue #87ceeb
analogousshippedSky Blue is #cdefef'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 #cdefef on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #cdefef in 21 real palettes, including Blueprint and Trailhead, as the accent.
Blue #0000ff
shipped47 real palettes, including Dropbox's brand system and Alaska Airlines's brand system put Blue beside #cdefef, as the accent.
Blue Violet #8a2be2
shippedBlue Violet is paired with #cdefef in 12 real palettes, including Gemstone and ClickUp's brand system, as the supporting colour.
Real palettes that use #cdefef
Tints & shades
Harmonies
Contrast
| #cdefef as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.22:1 | fail | fail | fail | |
Aaon black | 17.19:1 | 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 #cdefef as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#cdefef reads as cool, light, clean. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #cdefef
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 #cdefef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/cdefef-a2bbbe-d45994-1f272d-e9f1ed?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