Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#03005c
#03005c
hex
#03005crgb
rgb(3, 0, 92)hsl
hsl(242, 100%, 18%)oklch
oklch(0.216 0.147 265.9)Closest name: Ravenclaw (#0a0555)Relative luminance 0.0079
Colors that go with #03005c
Charcoal, Steel Blue and Cobalt 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 #03005c: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #03005c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #03005c: 8 real palettes, including Glacier and Air France's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #03005c: 4 real palettes, including Deep Water and Kraken's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #03005c: 10 real palettes, including Paramount+'s brand system and Bank of America's brand system, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #03005c in 7 real palettes, including Spectrum's brand system and Penpot's brand system, as the accent.
Slate Gray #708090
shipped4 real palettes, including Clinic and Slate Workspace put Slate Gray beside #03005c, as the supporting colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #03005c 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 #03005c
Tints & shades
Harmonies
Contrast
| #03005c as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 18.13:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.16:1 | 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 #03005c as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#03005c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #03005c
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 #03005c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/03005c-a29cc4-df9e4e-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