Playground
Open in tool →Orange, blue and green — the colors of playground equipment; loud, cheerful, obviously for kids.
Color
#2187fd
#2187fd
hex
#2187fdrgb
rgb(33, 135, 253)hsl
hsl(212, 98%, 56%)oklch
oklch(0.632 0.197 255.8)Closest name: dodgerblue (#1e90ff)Relative luminance 0.2474
Colors that go with #2187fd
Deep Sky Blue, Orange Red and Taupe 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.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #2187fd in 5 real palettes, including Astro's brand system and Blueprint, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #2187fd in 4 real palettes, including Replit's brand system and Heatwave, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #2187fd in 5 real palettes, including Readymag's brand system and Notion's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Dark Goldenrod #b8860b
complementaryDark Goldenrod sits directly opposite #2187fd on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shippedBlue is paired with #2187fd in 3 real palettes, including Readymag's brand system and MongoDB's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #2187fd in 3 real palettes, including Behance's brand system and Blue Mono, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
triadicshippedCrimson completes a triad with #2187fd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Charcoal #36454f
neutralCharcoal is the text near-black for #2187fd: softer than #000 and cool enough to feel like part of the same palette.
Real palettes that use #2187fd
Tints & shades
Harmonies
Contrast
| #2187fd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.53:1 | fail | pass | fail | |
Aaon black | 5.95:1 | 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 #2187fd as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#2187fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #2187fd
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 #2187fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/2187fd-9caac4-df564e-1f202d-e9f1f1?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