Color
Marine
#042e60rgb(4, 46, 96)hsl(213, 92%, 20%)oklch(0.307 0.099 256.2)Colors that go with Marine
Charcoal, Crimson and Steel 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 Marine: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with Marine — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
analogousshippedSteel Blue is Marine's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sienna #a0522d
complementaryshippedSienna sits directly opposite Marine on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with Marine in 5 real palettes, including Beach Hut and Southwest Airlines's brand system, as the supporting colour.
Blue #0000ff
shipped12 real palettes, including Alaska Airlines's brand system and Monzo's brand system put Blue beside Marine, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Rain Garden and Graphite Mono put Blush Pink beside Marine, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with Marine: 8 real palettes, including Open House and Coastal, as the supporting colour.
Real palettes that use Marine
Tints & shades
Harmonies
Contrast
| Marine as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.42:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.56:1 | 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 Marine as the background.
Brands using this color
Fonts for this mood
Marine reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
Point 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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #042e60 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/042e60-9ca9c4-df584e-1f202d-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