Color
#303a40
#303a40rgb(48, 58, 64)hsl(203, 14%, 22%)oklch(0.342 0.017 234.3)Colors that go with #303a40
Amber, 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.
Amber #ffbf00
shippedAmber is paired with #303a40 in 7 real palettes, including McDonald's's brand system and Beach Hut, as the lead colour.
Blue #0000ff
shipped12 real palettes, including Minecraft's brand system and Dunkin''s brand system put Blue beside #303a40, as the accent.
Blush Pink #e8b4b8
shipped5 real palettes, including Garden Wedding and Rain Garden put Blush Pink beside #303a40, as the supporting colour.
Burlywood #deb887
shippedBurlywood is paired with #303a40 in 5 real palettes, including Polaroid and Coastal, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #303a40: 8 real palettes, including Clean Beauty and Coastal, as the lead colour.
Champagne #f7e7ce
shipped7 real palettes, including Sweetgreen's brand system and Darkroom put Champagne beside #303a40, as the supporting colour.
Chocolate #d2691e
shippedChocolate shows up next to #303a40 in 4 real palettes, including Homestead and Wellness, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the near-white surface #303a40 was made for — maximum legibility with no colour cast to argue with.
Real palettes that use #303a40
Tints & shades
Harmonies
Contrast
| #303a40 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.63:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.8:1 | 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 #303a40 as the background.
Brands using this color
Fonts for this mood
#303a40 reads as cool, muted, 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 #303a40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/303a40-9cb0c4-df4e5d-1f222d-e9f1f0?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