Color
#004b56
#004b56rgb(0, 75, 86)hsl(188, 100%, 17%)oklch(0.379 0.066 211.4)Colors that go with #004b56
Steel Blue, Teal and Rust 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 #004b56's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is #004b56's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Rust #b7410e
complementaryshippedRust sits directly opposite #004b56 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped8 real palettes, including Jeep's brand system and Alaska Airlines's brand system put Blue beside #004b56, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #004b56, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #004b56: 4 real palettes, including Paper & Pine and Clean Beauty, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #004b56 in 8 real palettes, including Codecademy's brand system and Frost & Ember, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #004b56: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #004b56
Tints & shades
Harmonies
Contrast
| #004b56 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.81:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.14:1 | 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 #004b56 as the background.
Brands using this color
Fonts for this mood
#004b56 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 #004b56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/004b56-a2b7be-df4e81-1f252d-e9f1ee?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