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
#4da3fe
#4da3fe
hex
#4da3fergb
rgb(77, 163, 254)hsl
hsl(211, 99%, 65%)oklch
oklch(0.704 0.158 252.1)Closest name: Cerulean (#55aaee)Relative luminance 0.3493
Colors that go with #4da3fe
Charcoal, Orange Red and Taupe 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 #4da3fe: softer than #000 and cool enough to feel like part of the same palette.
Orange Red #ff4500
shippedOrange Red is paired with #4da3fe in 4 real palettes, including Heatwave and Cursor's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #4da3fe in 6 real palettes, including Astro's brand system and Cursor's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Peru #cd853f
complementaryPeru sits directly opposite #4da3fe on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Goldenrod #daa520
split-complementshippedGoldenrod is a split-complement of #4da3fe: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue #0000ff
shippedBlue is paired with #4da3fe in 3 real palettes, including Warp's brand system and Spotify's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Dark Orange #ff8c00
shippedDark Orange is paired with #4da3fe in 3 real palettes, including Learning App and Playground, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #4da3fe in 3 real palettes, including Blue Mono and First Snow, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #4da3fe
Tints & shades
Harmonies
Contrast
| #4da3fe as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.63:1 | fail | fail | fail | |
Aaon black | 7.99:1 | 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 #4da3fe as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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
#4da3fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #4da3fe
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 #4da3fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/4da3fe-9cabc4-df534e-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