Color
#4e66a6
#4e66a6rgb(78, 102, 166)hsl(224, 36%, 48%)oklch(0.521 0.105 267.2)Colors that go with #4e66a6
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 #4e66a6: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #4e66a6 — 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 #4e66a6 in 7 real palettes, including Warner Bros.'s brand system and Lemon Squeezy's brand system, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #4e66a6: 7 real palettes, including Fintech Trust and Glacier, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #4e66a6 in 11 real palettes, including Amazon's brand system and Marvel's brand system, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #4e66a6: 4 real palettes, including Campbell's's brand system and AT&T's brand system, as the supporting colour.
Light Sky Blue #87cefa
shippedLight Sky Blue is paired with #4e66a6 in 4 real palettes, including Sentry's brand system and Calm's brand system, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #4e66a6 in 5 real palettes, including Fintech Trust and Khan Academy's brand system, as the accent.
Real palettes that use #4e66a6
Tints & shades
Harmonies
Contrast
| #4e66a6 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.56:1 | pass | pass | fail |
|
Aaon black | 3.78:1 | 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 #4e66a6 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
#4e66a6 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 #4e66a6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4e66a6-9ca2c4-df724e-221f2d-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