Terminal
Open in tool →Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare.
Color
#04131b
#04131b
hex
#04131brgb
rgb(4, 19, 27)hsl
hsl(201, 74%, 6%)oklch
oklch(0.177 0.028 232.2)Closest name: Midnight Edition (#0c121b)Relative luminance 0.0057
Colors that go with #04131b
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 #04131b without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #04131b in 18 real palettes, including Lemon Squeezy's brand system and Southwest Airlines's brand system, as the lead colour.
Blue #0000ff
shipped21 real palettes, including Kia's brand system and MongoDB's brand system put Blue beside #04131b, as the accent.
Blue Violet #8a2be2
shippedBlue Violet is paired with #04131b in 10 real palettes, including Prepare your taste buds...'s brand system and Klarna US's brand system, as the accent.
Brown #a52a2a
shipped5 real palettes, including State Farm's brand system and Velvet put Brown beside #04131b, as the supporting colour.
Burgundy #800020
shipped4 real palettes, including Mailchimp's brand system and Rare Beauty's brand system put Burgundy beside #04131b, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #04131b in 5 real palettes, including Velvet and Coffee Bar, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #04131b: 9 real palettes, including Estate and Arctic, as the supporting colour.
Real palettes that use #04131b
Tints & shades
Harmonies
Contrast
| #04131b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 18.85:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.11:1 | 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 #04131b as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#04131b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #04131b
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 #04131b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/04131b-9cb1c4-df4e62-1f222d-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