Color
#04154e
#04154ergb(4, 21, 78)hsl(226, 90%, 16%)oklch(0.231 0.107 264.7)Colors that go with #04154e
Charcoal, Sea Green and Slate 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 #04154e: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #04154e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Slate Blue #6a5acd
analogousshippedSlate Blue is #04154e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Steel Blue #4682b4
analogousshippedSteel Blue is #04154e'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 #04154e in 14 real palettes, including Southwest Airlines's brand system and Blueprint, as the accent.
Blue #0000ff
shipped16 real palettes, including Penpot's brand system and Monzo's brand system put Blue beside #04154e, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #04154e in 6 real palettes, including Gemstone and ClickUp's brand system, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #04154e: 9 real palettes, including SoFi's brand system and Arctic, as the supporting colour.
Real palettes that use #04154e
Tints & shades
Harmonies
Contrast
| #04154e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 17.18:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.22:1 | 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 #04154e as the background.
Brands using this color
Fonts for this mood
#04154e 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 #04154e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/04154e-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