Color
#121b03
#121b03rgb(18, 27, 3)hsl(83, 80%, 6%)oklch(0.206 0.046 126.4)Colors that go with #121b03
Blue Violet, Charcoal and Crimson 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.
Blue Violet #8a2be2
complementaryshippedBlue Violet sits directly opposite #121b03 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #121b03: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Crimson #dc143c
triadicshippedCrimson completes a triad with #121b03 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
split-complementshippedRoyal Blue is a split-complement of #121b03: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sea Green #2e8b57
analogousshippedSea Green is #121b03's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Steel Blue #4682b4
triadicshippedSteel Blue completes a triad with #121b03 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #121b03 in 18 real palettes, including Trailhead and Warner Bros.'s brand system, as the accent.
Blue #0000ff
shipped24 real palettes, including CVS's brand system and Signal's brand system put Blue beside #121b03, as the supporting colour.
Real palettes that use #121b03
Tints & shades
Harmonies
Contrast
| #121b03 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.74:1 | 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 #121b03 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#121b03 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 #121b03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/121b03-b0bea2-4e5ddf-222d1f-f1f0e9?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