Color
#503cb4
#503cb4rgb(80, 60, 180)hsl(250, 50%, 47%)oklch(0.453 0.181 284.1)Colors that go with #503cb4
Charcoal, Sea Green and Steel Blue 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 #503cb4: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #503cb4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Steel Blue #4682b4
analogousshippedSteel Blue is #503cb4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #503cb4 in 4 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent.
Blue #0000ff
shipped4 real palettes, including Zillow's brand system and Pixar's brand system put Blue beside #503cb4, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #503cb4: 6 real palettes, including Blue Mono and Coca-Cola's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #503cb4 in 8 real palettes, including Behance's brand system and Netflix's brand system, as the accent.
Light Sky Blue #87cefa
shippedLight Sky Blue is paired with #503cb4 in 4 real palettes, including Sentry's brand system and Calm's brand system, as the accent.
Real palettes that use #503cb4
Tints & shades
Harmonies
Contrast
| #503cb4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.94:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.65:1 | 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 #503cb4 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
#503cb4 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 #503cb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/503cb4-a79cc4-dfb14e-281f2d-e9ecf1?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