Color
#003331
#003331rgb(0, 51, 49)hsl(178, 100%, 10%)oklch(0.29 0.05 190.6)Colors that go with #003331
Crimson, Rust and Sea Green 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.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #003331 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Rust #b7410e
split-complementshippedRust is a split-complement of #003331: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sea Green #2e8b57
analogousshippedSea Green is #003331's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sienna #a0522d
triadicshippedSienna completes a triad with #003331 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Teal #008080
analogousshippedTeal is #003331's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #003331 in 11 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour.
Blue #0000ff
shipped18 real palettes, including Instacart's brand system and Headspace's brand system put Blue beside #003331, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #003331: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #003331
Tints & shades
Harmonies
Contrast
| #003331 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.84:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.52:1 | 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 #003331 as the background.
Brands using this color
Fonts for this mood
#003331 reads as vivid, 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 #003331 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/003331-a2bcbe-d45999-1f282d-e9f1ed?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