Graphite
Open in tool →A greyscale system with a single amber — the accent does all the work, so allow one per screen.
Color
#eff3fb
#eff3fb
hex
#eff3fbrgb
rgb(239, 243, 251)hsl
hsl(220, 60%, 96%)oklch
oklch(0.963 0.012 264.5)Closest name: Errigal White (#f2f2f4)Relative luminance 0.8942
Tints & shades
Harmonies
Contrast
| #eff3fb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.11:1 | fail | fail | fail | |
Aaon black | 18.88:1 | 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 #eff3fb as the background.
Brands using this color
Palettes built around it
Ledger Dark
Open in tool →Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy.
Atelier
Open in tool →Black on bone with a whisper of gold: the runway default that lets garments carry the color.
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.
Lavender Haze
Open in tool →Violet and pink on lilac-white: Gen-Z friendly, while the deep plum text keeps it legible.
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.
Paper & Pine
Open in tool →Deep pine on paper-white with a marmalade accent — a quiet, sustainable-brand palette that isn't beige.
Fonts for this mood
#eff3fb reads as cool, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #eff3fb
live endpointPoint any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #eff3fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/eff3fb-9ca5c4-df694e-211f2d-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