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
#03090c
#03090c
hex
#03090crgb
rgb(3, 9, 12)hsl
hsl(200, 60%, 3%)oklch
oklch(0.133 0.015 223.1)Closest name: Black Knight (#010b13)Relative luminance 0.0024
Colors that go with #03090c
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 #03090c without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #03090c in 14 real palettes, including Ahrefs's brand system and Mastodon hosted on mastodon.social's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blue #0000ff
shippedBlue is paired with #03090c in 18 real palettes, including Pfizer's brand system and Glossier's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Blue Violet #8a2be2
shippedBlue Violet is paired with #03090c in 10 real palettes, including Circuit and Render's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Brown #a52a2a
shippedBrown is paired with #03090c in 4 real palettes, including Velvet and State Farm's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #03090c in 5 real palettes, including Estate and Arctic, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Champagne #f7e7ce
shippedChampagne is paired with #03090c in 8 real palettes, including Midnight Luxe and Sweetgreen's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #03090c in 11 real palettes, including Oreo's brand system and Behance's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #03090c
Tints & shades
Harmonies
Contrast
| #03090c as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 20.03:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.05:1 | 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 #03090c as the background.
Brands using this color
- Webflowtext · #080808 · Δ1.468
- M&M'sprimary · #040607 · Δ1.626
- M&M'stext · #040607 · Δ1.626
- Airbusprimary · #070b11 · Δ1.73
- Airbustext · #070b11 · Δ1.73
- Buntext · #0a0a0a · Δ1.878
- Framertext · #0a0a0a · Δ1.878
- MetaMaskprimary · #0a0a0a · Δ1.878
- MetaMasktext · #0a0a0a · Δ1.878
- Pfizerprimary · #0a0a0a · Δ1.878
- Pfizertext · #0a0a0a · Δ1.878
- Rare Beautyprimary · #000914 · Δ1.943
- Rare Beautytext · #000914 · Δ1.943
Palettes built around it
Streetwear
Open in tool →Black, white, red, yellow — drop-culture signal colors, unmissable at thumbnail size.
Laser
Open in tool →Laser green, violet and cyan — the synthwave/gaming set; keep the type near-white and let one neon own each screen.
Fonts for this mood
#03090c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #03090c
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 #03090c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/03090c-9cb2c4-df4e64-1f232d-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