Mid-Century
Open in tool →Tangerine, teal and mustard on cream — the 1960s lounge trio, one of the few retro palettes with real hue contrast.
Color
#23717b
#23717b
hex
#23717brgb
rgb(35, 113, 123)hsl
hsl(187, 56%, 31%)oklch
oklch(0.507 0.075 207.3)Closest name: Deep Pool Teal (#366d68)Relative luminance 0.136
Colors that go with #23717b
Charcoal, Crimson and Amber 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 #23717b: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #23717b 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 #23717b in 4 real palettes, including Lemon Squeezy's brand system and Beach Hut, as the lead colour.
Blue #0000ff
shipped4 real palettes, including Warp's brand system and Activision's brand system put Blue beside #23717b, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #23717b: 6 real palettes, including Fintech Trust and Ink & Paper, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #23717b: 5 real palettes, including Desert Road and Riverbed, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #23717b: 4 real palettes, including Warp's brand system and Deep Water, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #23717b: 16 real palettes, including The New York Times's brand system and Campus, as the supporting colour.
Real palettes that use #23717b
Tints & shades
Harmonies
Contrast
| #23717b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.65:1 | pass | pass | fail |
|
Aaon black | 3.72:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23717b as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#23717b reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #23717b
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 #23717b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/23717b-a2b8be-df4e83-1f262d-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