First Snow
Open in tool →Ice blue on snow-white with a deep navy — the quietest winter palette; everything is a tint of one cold hue.
Color
#154d7f
#154d7f
hex
#154d7frgb
rgb(21, 77, 127)hsl
hsl(208, 72%, 29%)oklch
oklch(0.412 0.101 249.9)Closest name: Assassin (#2d4f83)Relative luminance 0.07
Colors that go with #154d7f
Crimson, Blue and Cadet 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.
Crimson #dc143c
triadicshippedCrimson completes a triad with #154d7f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shipped4 real palettes, including CVS's brand system and Alaska Airlines's brand system put Blue beside #154d7f, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #154d7f: 4 real palettes, including Dusk and Open House, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #154d7f: 4 real palettes, including Blue Mono and Blizzard's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #154d7f: 12 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #154d7f in 4 real palettes, including Sapphire & Gold and Open House, as the supporting colour.
Midnight Blue #191970
shipped12 real palettes, including First Snow and Microsoft's brand system put Midnight Blue beside #154d7f, as that palette's text colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #154d7f: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #154d7f
Tints & shades
Harmonies
Contrast
| #154d7f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.75:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.4:1 | 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 #154d7f as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#154d7f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #154d7f
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 #154d7f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/154d7f-9cadc4-df4e51-1f212d-e9f1f1?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