Harbour
Open in tool →Steel blue and haze with a buoy orange on a pale grey — the maritime palette every port town uses for a reason.
Color
#31333a
#31333a
hex
#31333argb
rgb(49, 51, 58)hsl
hsl(227, 8%, 21%)oklch
oklch(0.322 0.013 273)Closest name: Dark Charcoal (#333232)Relative luminance 0.0333
Colors that go with #31333a
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 #31333a in 9 real palettes, including McDonald's's brand system and Beach Hut, as the lead colour.
Blue #0000ff
shipped15 real palettes, including Minecraft's brand system and Dunkin''s brand system put Blue beside #31333a, as the accent.
Blush Pink #e8b4b8
shipped5 real palettes, including Rain Garden and Blush put Blush Pink beside #31333a, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #31333a in 6 real palettes, including Polaroid and Coastal, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #31333a: 9 real palettes, including Clean Beauty and Coastal, as the lead colour.
Champagne #f7e7ce
shipped8 real palettes, including Darkroom and Sweetgreen's brand system put Champagne beside #31333a, as the surface under it.
Chocolate #d2691e
shippedChocolate shows up next to #31333a in 4 real palettes, including Homestead and Wellness, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the near-white surface #31333a was made for — maximum legibility with no colour cast to argue with.
Real palettes that use #31333a
Tints & shades
Harmonies
Contrast
| #31333a as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.61:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.67:1 | 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 #31333a as the background.
Brands using this color
- Audiprimary · #2c343f · Δ1.097
- Dockerprimary · #2c333f · Δ1.167
- Bloombergsecondary · #2b333f · Δ1.272
- Hermèsaccent · #2b333f · Δ1.272
- PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainmentsecondary · #2b333f · Δ1.272
- Mercuryprimary · #323341 · Δ1.301
- Minecraftprimary · #313131 · Δ1.542
- Minecrafttext · #313131 · Δ1.542
- Raycasttext · #2f3031 · Δ1.71
- Asanaprimary · #273240 · Δ1.978
Palettes built around it
Fonts for this mood
#31333a reads as muted, dark, luxury. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #31333a
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 #31333a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/31333a-9ca0c4-df7a4e-221f2d-e9eff1?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