Blueprint
Open in tool →Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'.
Color
#8187ee
#8187ee
hex
#8187eergb
rgb(129, 135, 238)hsl
hsl(237, 76%, 72%)oklch
oklch(0.665 0.151 278.9)Closest name: Perrywinkle (#8f8ce7)Relative luminance 0.2817
Colors that go with #8187ee
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 #8187ee: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #8187ee in 6 real palettes, including Blueprint and Mastodon hosted on mastodon.social's brand system, as the accent.
Blue #0000ff
shipped8 real palettes, including Qualcomm's brand system and Canva's brand system put Blue beside #8187ee, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #8187ee: 9 real palettes, including Blueprint and Figma's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #8187ee: 8 real palettes, including Coursera's brand system and Apple's brand system, as the accent.
Emerald Green #50c878
shippedEmerald Green is paired with #8187ee in 4 real palettes, including Obsidian's brand system and Playground, as the accent.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #8187ee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Midnight Blue #191970
shipped9 real palettes, including Blue Mono and Plaid's brand system put Midnight Blue beside #8187ee, as the text colour against it.
Real palettes that use #8187ee
Tints & shades
Harmonies
Contrast
| #8187ee as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.17:1 | fail | pass | fail | |
Aaon black | 6.63:1 | 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 #8187ee as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#8187ee reads as cool, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #8187ee
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 #8187ee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/8187ee-9f9cc4-df924e-251f2d-e9edf1?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