Color
#03a5fc
#03a5fcrgb(3, 165, 252)hsl(201, 98%, 50%)oklch(0.694 0.169 243.4)Colors that go with #03a5fc
Charcoal, Medium Sea Green and Tomato 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 #03a5fc: softer than #000 and cool enough to feel like part of the same palette.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #03a5fc — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Tomato #ff6347
split-complementshippedTomato is a split-complement of #03a5fc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #03a5fc in 7 real palettes, including Salesforce's brand system and NBA's brand system, as the accent.
Blue #0000ff
shipped8 real palettes, including Unity's brand system and Warp's brand system put Blue beside #03a5fc, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #03a5fc in 4 real palettes, including Learning App and Elastic's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #03a5fc: 5 real palettes, including Apple's brand system and Venmo's brand system, as the accent.
Midnight Blue #191970
shipped6 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #03a5fc, as the lead colour.
Real palettes that use #03a5fc
Tints & shades
Harmonies
Contrast
| #03a5fc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.7:1 | fail | fail | fail | |
Aaon black | 7.79:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03a5fc as the background.
Brands using this color
Fonts for this mood
#03a5fc 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 #03a5fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/03a5fc-9cb1c4-df4e62-1f222d-e9f1f0?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