Color
#45c8fc
#45c8fcrgb(69, 200, 252)hsl(197, 97%, 63%)oklch(0.783 0.133 228.9)Colors that go with #45c8fc
Charcoal, Crimson and Dodger 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 #45c8fc: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #45c8fc in 4 real palettes, including Riot Games's brand system and JBL's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #45c8fc: 4 real palettes, including Patreon's brand system and Figma's brand system, as the accent.
Midnight Blue #191970
shipped6 real palettes, including Telehealth and Kraken's brand system put Midnight Blue beside #45c8fc, as the text colour against it.
Periwinkle #ccccff
shippedPeriwinkle shows up next to #45c8fc in 4 real palettes, including Mistral AI's brand system and Calendly's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #45c8fc: 4 real palettes, including Calendly's brand system and Audible's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #45c8fc in 7 real palettes, including 1password's brand system and Telehealth, as the accent.
Coral #ff7f50
complementaryCoral sits directly opposite #45c8fc 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 #45c8fc
Tints & shades
Harmonies
Contrast
| #45c8fc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.92:1 | fail | fail | fail | |
Aaon black | 10.92:1 | 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 #45c8fc as the background.
Brands using this color
Fonts for this mood
#45c8fc 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 #45c8fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/45c8fc-9cb4c4-df4e6b-1f232d-e9f1ef?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