Fresh Juice
Open in tool →Orange, mango and mint — a sugar rush; keep the type black so it stays legible under all that color.
Color
Underworld
#1e231c
hex
#1e231crgb
rgb(30, 35, 28)hsl
hsl(103, 11%, 12%)oklch
oklch(0.249 0.015 136.7)Relative luminance 0.0156
Tints & shades
Harmonies
Contrast
| Underworld as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 16:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.31:1 | 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 Underworld 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
Underworld reads as muted, dark, luxury. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around Underworld
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 #1e231c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/1e231c-a6bea2-704edf-1f2d21-eff1e9?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