Color
#28435d
#28435drgb(40, 67, 93)hsl(209, 40%, 26%)oklch(0.374 0.056 248.6)Colors that go with #28435d
Sienna, Blue and Blush Pink 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.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #28435d 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 Alaska Airlines's brand system and Dunkin''s brand system put Blue beside #28435d, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #28435d, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #28435d: 5 real palettes, including Paper & Pine and Open House, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #28435d: 5 real palettes, including Notion's brand system and Clean Beauty.
Crimson #dc143c
shippedCrimson is paired with #28435d in 7 real palettes, including Codecademy's brand system and Frost & Ember, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #28435d: 11 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #28435d: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #28435d
Tints & shades
Harmonies
Contrast
| #28435d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.24:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.05:1 | 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 #28435d as the background.
Brands using this color
Fonts for this mood
#28435d reads as cool, 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 #28435d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/28435d-9cacc4-df4e4e-1f212d-e9f1f1?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