Chalkboard
Open in tool →Slate green with chalk cream and a coral — nostalgic without being twee.
Color
#152e2d
#152e2d
hex
#152e2drgb
rgb(21, 46, 45)hsl
hsl(178, 37%, 13%)oklch
oklch(0.281 0.031 192.2)Closest name: Elite Teal (#133337)Relative luminance 0.023
Colors that go with #152e2d
Charcoal, 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #152e2d: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
analogousshippedSea Green is #152e2d'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 #152e2d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
analogousshippedTeal is #152e2d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Indian Red #cd5c5c
complementaryshippedIndian Red sits directly opposite #152e2d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #152e2d in 15 real palettes, including Beach Hut and Wikipedia's brand system, as the supporting colour.
Blue #0000ff
shipped22 real palettes, including Readymag's brand system and Headspace's brand system put Blue beside #152e2d, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #152e2d in 6 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Real palettes that use #152e2d
Tints & shades
Harmonies
Contrast
| #152e2d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 14.38:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.46:1 | 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 #152e2d as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#152e2d reads as dark, luxury, bold. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #152e2d
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 #152e2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/152e2d-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