Chalkboard
Open in tool →Slate green with chalk cream and a coral — nostalgic without being twee.
Color
#1d251e
#1d251e
hex
#1d251ergb
rgb(29, 37, 30)hsl
hsl(128, 12%, 13%)oklch
oklch(0.254 0.017 148.5)Closest name: Underworld (#1e231c)Relative luminance 0.0168
Tints & shades
Harmonies
Contrast
| #1d251e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 15.72:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.34:1 | 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 #1d251e as the background.
Brands using this color
Palettes built around it
Forest Floor
Open in tool →Moss and bark with a mushroom-cap amber — grounded and quiet, made for long-form nature content.
Crayon Box
Open in tool →Red, teal and yellow at crayon saturation — joyful, but on white with black type so it stays readable for grown-ups.
Retro Pop
Open in tool →Fifties-diner red and steel blue with a peach — nostalgic pop that still passes contrast.
Paper & Pine
Open in tool →Deep pine on paper-white with a marmalade accent — a quiet, sustainable-brand palette that isn't beige.
Fonts for this mood
#1d251e reads as muted, dark, luxury. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #1d251e
live endpointPoint any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #1d251e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/1d251e-a2bea9-ac4edf-1f2d27-ecf1e9?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