Chalkboard
Open in tool →Slate green with chalk cream and a coral — nostalgic without being twee.
Color
#1a2829
#1a2829
hex
#1a2829rgb
rgb(26, 40, 41)hsl
hsl(184, 22%, 13%)oklch
oklch(0.265 0.019 201.6)Closest name: Black Pearl (#1e272c)Relative luminance 0.019
Colors that go with #1a2829
Charcoal, Amber and Blue 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 that reads cleanly against #1a2829 without the hard edge of pure #000.
Amber #ffbf00
shippedAmber is paired with #1a2829 in 15 real palettes, including Wikipedia's brand system and Beach Hut, as the accent.
Blue #0000ff
shipped22 real palettes, including Readymag's brand system and Bumble's brand system put Blue beside #1a2829, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #1a2829 in 9 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Blush Pink #e8b4b8
shipped7 real palettes, including Graphite Mono and Rain Garden put Blush Pink beside #1a2829, as the accent.
Brown #a52a2a
shipped5 real palettes, including Typewriter and Woodsmoke put Brown beside #1a2829, as the accent.
Burlywood #deb887
shippedBurlywood is paired with #1a2829 in 6 real palettes, including Chalkboard and Kiln, as the lead colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #1a2829: 9 real palettes, including Paper & Pine and Dusk, as the supporting colour.
Real palettes that use #1a2829
Tints & shades
Harmonies
Contrast
| #1a2829 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 15.22:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.38:1 | 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 #1a2829 as the background.
Brands using this color
- 7-Elevenprimary · #212529 · Δ1.458
- 7-Eleventext · #212529 · Δ1.458
- Boeingtext · #212529 · Δ1.458
- Datadogtext · #212529 · Δ1.458
- American Eagleprimary · #24272a · Δ1.642
- American Eagletext · #24272a · Δ1.642
- AT&Tprimary · #1d2329 · Δ1.829
- AT&Ttext · #1d2329 · Δ1.829
- GitHubtext · #1f2328 · Δ1.837
- Zedtext · #242529 · Δ1.841
- Cloudflaretext · #262626 · Δ1.955
- Obsidiantext · #262626 · Δ1.955
- Sveltetext · #262626 · Δ1.955
- Retoolprimary · #242424 · Δ1.959
Palettes built around it
Fonts for this mood
#1a2829 reads as cool, muted, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #1a2829
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 #1a2829 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/1a2829-a2b9be-df4e8a-1f262d-e9f1ee?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