Color
#5837fb
#5837fbrgb(88, 55, 251)hsl(250, 96%, 60%)oklch(0.519 0.267 279.3)Colors that go with #5837fb
Charcoal, Amber and 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 #5837fb: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #5837fb in 4 real palettes, including Walmart's brand system and Mastodon hosted on mastodon.social's brand system, as the accent.
Blue #0000ff
shipped4 real palettes, including Dropbox's brand system and Headspace's brand system put Blue beside #5837fb, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #5837fb: 8 real palettes, including Nokia's brand system and NHL's brand system, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #5837fb: 5 real palettes, including Roblox's brand system and Qualcomm's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #5837fb in 6 real palettes, including Coinbase's brand system and Toyota's brand system.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #5837fb: 5 real palettes, including Warp's brand system and Calm's brand system, as the lead colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #5837fb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #5837fb
Tints & shades
Harmonies
Contrast
| #5837fb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.26:1 | pass | pass | fail |
|
Aaon black | 3.35:1 | 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 #5837fb as the background.
Brands using this color
Fonts for this mood
#5837fb 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 #5837fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5837fb-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