Color
#8399fb
#8399fbrgb(131, 153, 251)hsl(229, 94%, 75%)oklch(0.708 0.145 272.6)Colors that go with #8399fb
Charcoal, Deep Sky Blue and Goldenrod 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 #8399fb: softer than #000 and cool enough to feel like part of the same palette.
Deep Sky Blue #00bfff
analogousshippedDeep Sky Blue is #8399fb's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Goldenrod #daa520
complementaryshippedGoldenrod sits directly opposite #8399fb 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 #8399fb in 7 real palettes, including Ahrefs's brand system and Blueprint, as the supporting colour.
Blue #0000ff
shipped5 real palettes, including Canva's brand system and Spotify's brand system put Blue beside #8399fb, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #8399fb in 4 real palettes, including Ahrefs's brand system and Learning App, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #8399fb: 7 real palettes, including Coca-Cola's brand system and Apple's brand system, as the accent.
Gold #ffd700
shippedGold shows up next to #8399fb in 4 real palettes, including Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom's brand system and Prime Video's brand system, as the supporting colour.
Real palettes that use #8399fb
Tints & shades
Harmonies
Contrast
| #8399fb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.65:1 | fail | fail | fail | |
Aaon black | 7.91:1 | 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 #8399fb as the background.
Brands using this color
Fonts for this mood
#8399fb reads as cool, vivid, light. The font library is tagged with the same vocabulary:
Point 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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #8399fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/8399fb-9c9fc4-df7e4e-231f2d-e9eef1?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