Campus
Open in tool →Institutional blue with a highlighter-amber accent — trustworthy for parents, lively enough for students.
Color
#2f51da
#2f51da
hex
#2f51dargb
rgb(47, 81, 218)hsl
hsl(228, 70%, 52%)oklch
oklch(0.501 0.212 267.1)Closest name: Arcane Brew (#5260e1)Relative luminance 0.1155
Colors that go with #2f51da
Charcoal, Sea Green and Amber 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 #2f51da: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #2f51da — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #2f51da in 6 real palettes, including Walmart's brand system and NBA's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Blue #0000ff
shippedBlue is paired with #2f51da in 9 real palettes, including Headspace's brand system and Dropbox's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cornflower Blue #6495ed
shippedCornflower Blue is paired with #2f51da in 9 real palettes, including Gopro's brand system and NBA's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #2f51da in 14 real palettes, including Chase's brand system and Foot Locker's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #2f51da in 6 real palettes, including Calm's brand system and Elastic's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #2f51da in 7 real palettes, including Coursera's brand system and HashiCorp's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #2f51da
Tints & shades
Harmonies
Contrast
| #2f51da as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.34:1 | pass | pass | fail |
|
Aaon black | 3.31:1 | fail | 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 #2f51da 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
Peacock
Open in tool →Teal, cobalt and magenta at full chroma on white — jewel tones in daylight; the trick is a near-black text with a blue cast.
Fonts for this mood
#2f51da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #2f51da
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 #2f51da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/2f51da-9c9fc4-df7c4e-231f2d-e9eff1?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