Terminal
Open in tool →Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare.
Color
#ecf3fd
#ecf3fd
hex
#ecf3fdrgb
rgb(236, 243, 253)hsl
hsl(215, 81%, 96%)oklch
oklch(0.962 0.015 257.2)Closest name: First Snow (#e8eff8)Relative luminance 0.8903
Colors that go with #ecf3fd
Charcoal, Amber and Blue 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 that reads cleanly against #ecf3fd without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #ecf3fd in 17 real palettes, including Binance's brand system and Trailhead, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blue #0000ff
shippedBlue is paired with #ecf3fd in 37 real palettes, including Alaska Airlines's brand system and Dropbox's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Blue Violet #8a2be2
shippedBlue Violet is paired with #ecf3fd in 11 real palettes, including Gemstone and ClickUp's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blush Pink #e8b4b8
shippedBlush Pink is paired with #ecf3fd in 7 real palettes, including Estate and Rain Garden, as the accent — a combination designers have actually shipped, not a computed rotation.
Brown #a52a2a
shippedBrown is paired with #ecf3fd in 5 real palettes, including Velvet and Typewriter, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Burgundy #800020
shippedBurgundy is paired with #ecf3fd in 4 real palettes, including Candlelight and Heinz's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Burlywood #deb887
shippedBurlywood is paired with #ecf3fd in 6 real palettes, including Coastal and Velvet, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #ecf3fd
Tints & shades
Harmonies
Contrast
| #ecf3fd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.12:1 | fail | fail | fail | |
Aaon black | 18.81:1 | 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 #ecf3fd as the background.
Brands using this color
Palettes built around it
Graphite
Open in tool →A greyscale system with a single amber — the accent does all the work, so allow one per screen.
Ledger Dark
Open in tool →Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy.
Estate
Open in tool →Bronze on charcoal signals premium listings; the silver accent handles secondary detail without adding color.
Noir Beauty
Open in tool →Black, gold and one deep red — the prestige cosmetics counter: all restraint and a single lipstick.
Alpine
Open in tool →Glacier blue with a safety-orange accent: technical outdoor gear, not lifestyle.
Studio Grey
Open in tool →A pure greyscale with a single electric blue — the portfolio palette that makes work look considered.
Dusk
Open in tool →Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals.
Arcade
Open in tool →Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up.
Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
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.
Ink Wash
Open in tool →Greys on near-black — the monochrome dark mode; keep everything a tint of white and the layout does the talking.
Gemstone
Open in tool →Emerald, amethyst and ruby on velvet-black — the jewel-tone trio; the surface must be dark or the stones go plastic.
Still Water
Open in tool →Dusty teal and mist with a sand accent — low chroma, low contrast between colours, high contrast for text: the recipe for calm.
Fonts for this mood
#ecf3fd reads as cool, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #ecf3fd
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 #ecf3fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/ecf3fd-9ca8c4-df5d4e-201f2d-e9f0f1?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