Ink & Paper
Open in tool →Two greys and one ink-blue link color: the palette of a well-set book page.
Color
#151e23
#151e23
hex
#151e23rgb
rgb(21, 30, 35)hsl
hsl(201, 25%, 11%)oklch
oklch(0.229 0.016 232.7)Closest name: Coco’s Black (#1c1c1a)Relative luminance 0.0121
Tints & shades
Harmonies
Contrast
| #151e23 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 16.91:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.24:1 | 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 #151e23 as the background.
Brands using this color
- Boxtext · #151f26 · Δ0.599
- Airtableaccent · #181d26 · Δ0.945
- Asanasecondary · #151b26 · Δ1.421
- Vimeotext · #141a20 · Δ1.479
- Splinetext · #191a1d · Δ1.607
- Netlifytext · #181a1c · Δ1.668
- N26text · #1b1b1b · Δ1.747
- Figmatext · #1e1e1e · Δ1.749
- JetBrainstext · #19191c · Δ1.939
- GitLabtext · #1f1f1f · Δ1.948
- HubSpottext · #1f1f1f · Δ1.948
Palettes built around it
Fresh Juice
Open in tool →Orange, mango and mint — a sugar rush; keep the type black so it stays legible under all that color.
Learning App
Open in tool →Green, blue and orange at full saturation: the gamified-learning look, where every color is a reward.
Playground
Open in tool →Orange, blue and green — the colors of playground equipment; loud, cheerful, obviously for kids.
Studio Grey
Open in tool →A pure greyscale with a single electric blue — the portfolio palette that makes work look considered.
Fonts for this mood
#151e23 reads as cool, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #151e23
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 #151e23 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/151e23-9cb1c4-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