Color
#2f3c65
#2f3c65rgb(47, 60, 101)hsl(226, 36%, 29%)oklch(0.365 0.073 269.3)Colors that go with #2f3c65
Steel Blue, Dark Olive Green 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.
Steel Blue #4682b4
analogousshippedSteel Blue is #2f3c65's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Dark Olive Green #556b2f
complementaryshippedDark Olive Green sits directly opposite #2f3c65 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped12 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside #2f3c65, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #2f3c65, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #2f3c65: 5 real palettes, including Open House and Coastal, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #2f3c65 in 10 real palettes, including Marvel's brand system and Frost & Ember, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #2f3c65: 4 real palettes, including Lamborghini's brand system and Vimeo's brand system, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #2f3c65: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #2f3c65
Tints & shades
Harmonies
Contrast
| #2f3c65 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.74:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.96:1 | 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 #2f3c65 as the background.
Brands using this color
Fonts for this mood
#2f3c65 reads as cool, dark, luxury. 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 #2f3c65 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2f3c65-9ca1c4-df774e-221f2d-e9eff1?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