Color
#33518a
#33518argb(51, 81, 138)hsl(219, 46%, 37%)oklch(0.441 0.101 262.1)Colors that go with #33518a
Sea Green, Sienna 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.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #33518a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #33518a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #33518a in 4 real palettes, including McDonald's's brand system and Warner Bros.'s brand system, as the supporting colour.
Blue #0000ff
shipped6 real palettes, including CVS's brand system and Costco's brand system put Blue beside #33518a, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #33518a: 4 real palettes, including Blue Mono and Coca-Cola's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #33518a in 13 real palettes, including Walgreens's brand system and Pepsi's brand system, as the lead colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #33518a: 7 real palettes, including Campbell's's brand system and AT&T's brand system, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #33518a: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #33518a
Tints & shades
Harmonies
Contrast
| #33518a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.82:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.68:1 | 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 #33518a 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
#33518a 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 #33518a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/33518a-9ca5c4-df664e-211f2d-e9f0f1?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