Terminal
Open in tool →Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare.
Color
#4fa3f8
#4fa3f8
hex
#4fa3f8rgb
rgb(79, 163, 248)hsl
hsl(210, 92%, 64%)oklch
oklch(0.702 0.149 251)Closest name: Cerulean (#55aaee)Relative luminance 0.3463
Colors that go with #4fa3f8
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 #4fa3f8: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #4fa3f8 in 6 real palettes, including NBA's brand system and Salesforce's brand system, as the lead colour.
Blue #0000ff
shipped5 real palettes, including Unity's brand system and Warp's brand system put Blue beside #4fa3f8, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #4fa3f8 in 5 real palettes, including Learning App and Elastic's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #4fa3f8: 6 real palettes, including Apple's brand system and Coca-Cola's brand system, as the accent.
Medium Sea Green #3cb371
triadicshippedMedium Sea Green completes a triad with #4fa3f8 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Midnight Blue #191970
shipped6 real palettes, including Blue Mono and Kraken's brand system put Midnight Blue beside #4fa3f8, as the text colour against it.
Orange Red #ff4500
shippedOrange Red is paired with #4fa3f8 in 7 real palettes, including Figma's brand system and Cursor's brand system, as the lead colour.
Real palettes that use #4fa3f8
Tints & shades
Harmonies
Contrast
| #4fa3f8 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.65:1 | fail | fail | fail | |
Aaon black | 7.93:1 | 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 #4fa3f8 as the background.
Brands using this color
Palettes built around it
Blue Mono
Open in tool →One blue at four lightnesses — monochromatic in the colour-theory sense; the deep step is the text, the pale step the surface tint.
Fonts for this mood
#4fa3f8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #4fa3f8
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #4fa3f8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/4fa3f8-9cabc4-df514e-1f202d-e9f1f1?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