Campus
Open in tool →Institutional blue with a highlighter-amber accent — trustworthy for parents, lively enough for students.
Color
#212931
#212931
hex
#212931rgb
rgb(33, 41, 49)hsl
hsl(210, 20%, 16%)oklch
oklch(0.277 0.019 248.5)Closest name: Infinity (#222831)Relative luminance 0.0213
Colors that go with #212931
Charcoal, Amber 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 that reads cleanly against #212931 without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #212931 in 18 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour.
Blue #0000ff
shipped24 real palettes, including Readymag's brand system and Headspace's brand system put Blue beside #212931, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #212931 in 9 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Blush Pink #e8b4b8
shipped7 real palettes, including Graphite Mono and Rain Garden put Blush Pink beside #212931, as the accent.
Brown #a52a2a
shipped4 real palettes, including Typewriter and Woodsmoke put Brown beside #212931, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #212931 in 5 real palettes, including Coastal and Chalkboard, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #212931: 10 real palettes, including Dusk and Coastal, as the supporting colour.
Real palettes that use #212931
Tints & shades
Harmonies
Contrast
| #212931 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 14.72:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.43:1 | 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 #212931 as the background.
Brands using this color
- Charactersecondary · #1f2937 · Δ1.153
- Vodafonetext · #25282b · Δ1.175
- American Eagleprimary · #24272a · Δ1.298
- American Eagletext · #24272a · Δ1.298
- Operaaccent · #252836 · Δ1.313
- Loomtext · #292a2e · Δ1.529
- dbt Labssecondary · #1e2939 · Δ1.547
- Nespressoprimary · #1f2533 · Δ1.634
- Zedtext · #242529 · Δ1.698
- Subarutext · #1d252c · Δ1.7
- 7-Elevenprimary · #212529 · Δ1.727
- 7-Eleventext · #212529 · Δ1.727
- AMDprimary · #212529 · Δ1.727
- AMDtext · #212529 · Δ1.727
- Boeingtext · #212529 · Δ1.727
- Calvin Kleinprimary · #212529 · Δ1.727
- Calvin Kleintext · #212529 · Δ1.727
- Datadogtext · #212529 · Δ1.727
- Tommy Hilfigerprimary · #212529 · Δ1.727
- Tommy Hilfigertext · #212529 · Δ1.727
- Trader Joe'sprimary · #212529 · Δ1.727
- Trader Joe'stext · #212529 · Δ1.727
- Readymagtext · #282828 · Δ1.867
- YouTubesecondary · #282828 · Δ1.867
- McDonald'stext · #292929 · Δ1.914
- Rotten Tomatoesprimary · #2a2c32 · Δ1.924
Palettes built around it
Dusk
Open in tool →Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals.
Beach Hut
Open in tool →Sea blue with sun-bleached yellow and a coral — striped-canvas summer, softened so it works on a screen.
Fonts for this mood
#212931 reads as cool, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #212931
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 #212931 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/212931-9cabc4-df514e-1f202d-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