Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#040363
#040363
hex
#040363rgb
rgb(4, 3, 99)hsl
hsl(241, 94%, 20%)oklch
oklch(0.232 0.152 266.1)Closest name: Alone in the Dark (#000066)Relative luminance 0.0099
Colors that go with #040363
Charcoal, Steel Blue 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 #040363: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #040363's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped4 real palettes, including Penpot's brand system and Pepsi's brand system put Blue beside #040363, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #040363: 5 real palettes, including Glacier and Blue Mono, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #040363: 4 real palettes, including Deep Water and Kraken's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #040363: 7 real palettes, including Bank of America's brand system and Paramount+'s brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #040363 in 7 real palettes, including Penpot's brand system and Discord's brand system, as the accent.
Olive Green #808000
complementaryOlive Green sits directly opposite #040363 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 #040363
Tints & shades
Harmonies
Contrast
| #040363 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.52:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.2:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040363 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#040363 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #040363
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 #040363 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/040363-a19cc4-df9b4e-261f2d-e9edf1?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