Color
#638dee
#638deergb(99, 141, 238)hsl(222, 80%, 66%)oklch(0.658 0.152 264.9)Colors that go with #638dee
Charcoal, Tomato 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 #638dee: softer than #000 and cool enough to feel like part of the same palette.
Tomato #ff6347
triadicshippedTomato completes a triad with #638dee — 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 #638dee in 9 real palettes, including Blueprint and Mastodon hosted on mastodon.social's brand system, as the accent.
Blue #0000ff
shipped10 real palettes, including Qualcomm's brand system and Unity's brand system put Blue beside #638dee, as the accent.
Dark Orange #ff8c00
shippedDark Orange shows up next to #638dee in 4 real palettes, including Playground and Ahrefs's brand system, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #638dee: 6 real palettes, including Blueprint and Figma's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #638dee: 12 real palettes, including Apple's brand system and Coursera's brand system, as the accent.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #638dee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Real palettes that use #638dee
Tints & shades
Harmonies
Contrast
| #638dee as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.19:1 | fail | pass | fail | |
Aaon black | 6.58:1 | pass | 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 #638dee 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
#638dee 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 #638dee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/638dee-9ca3c4-df6e4e-211f2d-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