Color
#818bca
#818bcargb(129, 139, 202)hsl(232, 41%, 65%)oklch(0.654 0.095 276.5)Colors that go with #818bca
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 for #818bca: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #818bca in 7 real palettes, including Blueprint and Ahrefs's brand system, as the accent.
Blue #0000ff
shipped5 real palettes, including Qualcomm's brand system and Canva's brand system put Blue beside #818bca, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #818bca in 4 real palettes, including Ahrefs's brand system and Elastic's brand system, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #818bca: 6 real palettes, including Blueprint and Snowflake AI Data Cloud's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #818bca: 8 real palettes, including Dusk and Open House, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Plaid's brand system and Open House put Midnight Blue beside #818bca, as the supporting colour.
Dark Goldenrod #b8860b
complementaryDark Goldenrod sits directly opposite #818bca on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #818bca
Tints & shades
Harmonies
Contrast
| #818bca as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.24:1 | fail | pass | fail | |
Aaon black | 6.48:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #818bca as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#818bca reads as cool, modern. 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 #818bca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/818bca-9c9dc4-df864e-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