Console Light
Open in tool →A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else.
Color
#0166f4
#0166f4
hex
#0166f4rgb
rgb(1, 102, 244)hsl
hsl(215, 99%, 48%)oklch
oklch(0.554 0.227 260.2)Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1604
Colors that go with #0166f4
Charcoal, Crimson 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 #0166f4: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0166f4 — 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 #0166f4 in 9 real palettes, including NBA's brand system and Walmart's brand system, as the lead colour.
Blue #0000ff
shipped14 real palettes, including Headspace's brand system and MongoDB's brand system put Blue beside #0166f4, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #0166f4: 13 real palettes, including Nokia's brand system and Behance's brand system, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #0166f4: 6 real palettes, including Webflow's brand system and Roblox's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #0166f4: 8 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #0166f4: 8 real palettes, including OnePlus's brand system and ASUS's brand system, as the supporting colour.
Real palettes that use #0166f4
Tints & shades
Harmonies
Contrast
| #0166f4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.99:1 | pass | pass | fail |
|
Aaon black | 4.21:1 | fail | 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 #0166f4 as the background.
Brands using this color
- Wayfairsecondary · #1364f1 · Δ0.684
- Nokiasecondary · #0065ed · Δ1.095
- Headspacesecondary · #0061ef · Δ1.41
- Chasesecondary · #0060f0 · Δ1.538
- Webflowprimary · #146cf4 · Δ1.616
- OnePlusaccent · #2660f5 · Δ1.637
- WWEaccent · #0166ff · Δ1.663
- MongoDBsecondary · #006cfa · Δ1.678
- IBMaccent · #0062fe · Δ1.746
- GEICOsecondary · #026df1 · Δ1.747
- IBMsecondary · #0f62fe · Δ1.747
- Dropboxsecondary · #0061fe · Δ1.867
- Yahooaccent · #0f69ff · Δ1.894
- Ubisoftaccent · #006ef5 · Δ1.909
- Squareprimary · #006aff · Δ1.911
- Squareaccent · #006aff · Δ1.911
- Dropboxprimary · #0061ff · Δ1.986
- Behanceprimary · #1769ff · Δ1.995
Palettes built around it
Slate Workspace
Open in tool →Slate on slate with a single blue — the productivity-app look where the interface disappears behind the work.
Telehealth
Open in tool →Friendly blue with a soft tint and a green all-clear — approachable care with a tech backbone.
Fonts for this mood
#0166f4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #0166f4
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 #0166f4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/0166f4-9ca8c4-df5d4e-201f2d-e9f0f1?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