Circuit
Open in tool →Violet plus cyan is the current AI-product signal — pair it with pure black type to keep it from going candy.
Color
#100a0f
#100a0f
hex
#100a0frgb
rgb(16, 10, 15)hsl
hsl(310, 23%, 5%)oklch
oklch(0.155 0.014 332)Closest name: Black Sheep (#0f0d0d)Relative luminance 0.0036
Colors that go with #100a0f
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 #100a0f without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #100a0f in 16 real palettes, including Ember and Ahrefs's brand system, as the accent.
Blue #0000ff
shipped18 real palettes, including Pfizer's brand system and Robinhood's brand system put Blue beside #100a0f, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #100a0f in 10 real palettes, including Render's brand system and Twitch's brand system, as the lead colour.
Brown #a52a2a
shipped4 real palettes, including Velvet and Garnet put Brown beside #100a0f, as the lead colour.
Burgundy #800020
shipped4 real palettes, including Mailchimp's brand system and Rare Beauty's brand system put Burgundy beside #100a0f, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #100a0f: 7 real palettes, including Estate and Arctic, as the supporting colour.
Champagne #f7e7ce
shipped9 real palettes, including Midnight Luxe and Sweetgreen's brand system put Champagne beside #100a0f, as the text colour against it.
Real palettes that use #100a0f
Tints & shades
Harmonies
Contrast
| #100a0f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 19.58:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.07:1 | 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 #100a0f as the background.
Brands using this color
- Olympicstext · #0d0d10 · Δ1.228
- Coinbasetext · #0a0b0d · Δ1.466
- Asanatext · #0d0d0d · Δ1.497
- Rendertext · #0d0d0d · Δ1.497
- Twitchtext · #0e0e10 · Δ1.523
- Lineartext · #0d0e10 · Δ1.575
- Buntext · #0a0a0a · Δ1.787
- Framertext · #0a0a0a · Δ1.787
- MetaMaskprimary · #0a0a0a · Δ1.787
- MetaMasktext · #0a0a0a · Δ1.787
- Pfizerprimary · #0a0a0a · Δ1.787
- Pfizertext · #0a0a0a · Δ1.787
- Airbusprimary · #070b11 · Δ1.934
- Airbustext · #070b11 · Δ1.934
Palettes built around it
Neobank
Open in tool →Purple-and-lime is the challenger-bank uniform — high energy, and clearly not a legacy bank.
Streetwear
Open in tool →Black, white, red, yellow — drop-culture signal colors, unmissable at thumbnail size.
Noir Beauty
Open in tool →Black, gold and one deep red — the prestige cosmetics counter: all restraint and a single lipstick.
Midnight Luxe
Open in tool →Champagne gold on ink-navy with a violet undertone — hotels and spirits use it because it reads expensive at any size.
Velvet
Open in tool →Burgundy and plum on near-black with a brass accent — theatre, wine, and anything that wants to feel after-dark.
Arcade
Open in tool →Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up.
Night Market
Open in tool →Orange, magenta and yellow neon on aubergine-black — the street-sign palette for food, nightlife and events.
Fonts for this mood
#100a0f reads as warm, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #100a0f
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 #100a0f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/100a0f-c19fb7-83cb62-2d1f25-efe9f1?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