Color
#2b757d
#2b757drgb(43, 117, 125)hsl(186, 49%, 33%)oklch(0.52 0.073 205.2)Colors that go with #2b757d
Charcoal, Crimson and Amber 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 #2b757d: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #2b757d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #2b757d in 4 real palettes, including Lemon Squeezy's brand system and Beach Hut, as the lead colour.
Blue #0000ff
shipped4 real palettes, including Warp's brand system and Activision's brand system put Blue beside #2b757d, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2b757d: 6 real palettes, including Fintech Trust and Ink & Paper, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #2b757d: 5 real palettes, including Riverbed and Desert Road, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #2b757d: 4 real palettes, including Warp's brand system and Deep Water, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #2b757d: 14 real palettes, including The New York Times's brand system and Campus, as the supporting colour.
Real palettes that use #2b757d
Tints & shades
Harmonies
Contrast
| #2b757d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.33:1 | pass | pass | fail |
|
Aaon black | 3.94:1 | 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 #2b757d as the background.
Brands using this color
Fonts for this mood
#2b757d reads as cool, modern. 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 #2b757d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2b757d-a2b8be-df4e86-1f262d-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