Color
#343ae5
#343ae5rgb(52, 58, 229)hsl(238, 77%, 55%)oklch(0.478 0.248 270.7)Colors that go with #343ae5
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 #343ae5: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #343ae5 — 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 #343ae5 in 6 real palettes, including Walmart's brand system and Binance's brand system, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #343ae5: 10 real palettes, including Qualcomm's brand system and Canva's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #343ae5 in 13 real palettes, including Behance's brand system and Coinbase's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #343ae5: 4 real palettes, including Warp's brand system and Kraken's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #343ae5: 12 real palettes, including Pixar's brand system and Dairy Queen's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #343ae5: 9 real palettes, including Coursera's brand system and Cargo's brand system, as the supporting colour.
Real palettes that use #343ae5
Tints & shades
Harmonies
Contrast
| #343ae5 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.28:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.88:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #343ae5 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
#343ae5 reads as cool, vivid, technical. 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 #343ae5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/343ae5-9f9cc4-df944e-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