Color
#4d37c8
#4d37c8rgb(77, 55, 200)hsl(249, 57%, 50%)oklch(0.461 0.211 281.1)Colors that go with #4d37c8
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 #4d37c8: 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 #4d37c8: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #4d37c8 in 5 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the accent.
Blue #0000ff
shipped5 real palettes, including Zillow's brand system and Procter & Gamble's brand system put Blue beside #4d37c8, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #4d37c8: 8 real palettes, including Blue Mono and Qualcomm's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #4d37c8 in 13 real palettes, including Behance's brand system and Wells Fargo's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #4d37c8: 7 real palettes, including Coursera's brand system and HashiCorp's brand system, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #4d37c8: 6 real palettes, including MLB's brand system and Datadog's brand system, as the supporting colour.
Real palettes that use #4d37c8
Tints & shades
Harmonies
Contrast
| #4d37c8 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.79:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.7:1 | 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 #4d37c8 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
#4d37c8 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 #4d37c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4d37c8-a79cc4-dfae4e-271f2d-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