Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#04035e
#04035e
hex
#04035ergb
rgb(4, 3, 94)hsl
hsl(241, 94%, 19%)oklch
oklch(0.224 0.146 266.4)Closest name: Alone in the Dark (#000066)Relative luminance 0.009
Colors that go with #04035e
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 #04035e: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #04035e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped5 real palettes, including Penpot's brand system and Monzo's brand system put Blue beside #04035e, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #04035e: 6 real palettes, including Glacier and Blue Mono, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #04035e: 4 real palettes, including Deep Water and Kraken's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #04035e: 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 #04035e in 7 real palettes, including Penpot's brand system and GEICO's brand system, as the accent.
Slate Gray #708090
shipped4 real palettes, including Clinic and Slate Workspace put Slate Gray beside #04035e, as the supporting colour.
Real palettes that use #04035e
Tints & shades
Harmonies
Contrast
| #04035e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.8:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.18:1 | 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 #04035e as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#04035e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #04035e
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 #04035e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/04035e-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