Mint Chip
Open in tool →Mint and celadon with a peach accent — fresh without being clinical; the deep green text keeps it grounded.
Color
#133a39
#133a39
hex
#133a39rgb
rgb(19, 58, 57)hsl
hsl(178, 51%, 15%)oklch
oklch(0.321 0.044 192.9)Closest name: Royal Neptune (#1c3b42)Relative luminance 0.0346
Colors that go with #133a39
Crimson, Sea Green and Sienna 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.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #133a39 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Sea Green #2e8b57
analogousshippedSea Green is #133a39's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sienna #a0522d
split-complementshippedSienna is a split-complement of #133a39: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
analogousshippedTeal is #133a39's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #133a39 in 8 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour.
Blue #0000ff
shipped14 real palettes, including Instacart's brand system and Jeep's brand system put Blue beside #133a39, as the accent.
Blush Pink #e8b4b8
shipped5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #133a39, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #133a39: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #133a39
Tints & shades
Harmonies
Contrast
| #133a39 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.41:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.69:1 | 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 #133a39 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#133a39 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #133a39
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 #133a39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/133a39-a2bcbe-d45999-1f282d-e9f1ed?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