Mid-Century
Open in tool →Tangerine, teal and mustard on cream — the 1960s lounge trio, one of the few retro palettes with real hue contrast.
Color
#256b6f
#256b6f
hex
#256b6frgb
rgb(37, 107, 111)hsl
hsl(183, 50%, 29%)oklch
oklch(0.486 0.069 200.5)Closest name: Aqua Obscura (#05696b)Relative luminance 0.1206
Colors that go with #256b6f
Charcoal, Crimson 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #256b6f: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #256b6f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Warp's brand system and Rolex's brand system put Blue beside #256b6f, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #256b6f: 4 real palettes, including Alpine and Open House, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #256b6f: 4 real palettes, including Fintech Trust and Ink & Paper, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #256b6f: 5 real palettes, including Desert Road and Clay & Linen, as the lead colour.
Dark Goldenrod #b8860b
shipped4 real palettes, including Rolex's brand system and Cider put Dark Goldenrod beside #256b6f, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #256b6f: 4 real palettes, including Warp's brand system and Deep Water, as the lead colour.
Real palettes that use #256b6f
Tints & shades
Harmonies
Contrast
| #256b6f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.16:1 | pass | pass | fail |
|
Aaon black | 3.41:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #256b6f as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#256b6f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #256b6f
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #256b6f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/256b6f-a2b9be-d4598e-1f262d-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