What are the hex codes in the Cool Stone palette?

The Cool Stone color palette consists of Smoke #F7F8FA, Ice #E4E7EC, Raisin #1F2937, Steel Blue #4F7CAC.

How should I use the Cool Stone palette on a website?

Use Smoke #F7F8FA as the background, Raisin #1F2937 for text, Steel Blue #4F7CAC for buttons and links, and Ice #E4E7EC for accents. 2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Smoke on Raisin at 13.81:1.

Which colors in Cool Stone have enough contrast for text?

The highest-contrast pair is #F7F8FA on #1F2937 with a ratio of 13.81:1, which passes WCAG AA for normal text.

#F7F8FASmoke

#E4E7ECIce

#1F2937Raisin

#4F7CACSteel Blue

Cool Stone color palette

Minimal White Gray

Color codes click any value to copy

Name	HEX	RGB	HSL	OKLCH
Smoke	`#F7F8FA`	`rgb(247, 248, 250)`	`hsl(220, 23%, 97%)`	`oklch(97.9% 0.003 265)`
Ice	`#E4E7EC`	`rgb(228, 231, 236)`	`hsl(218, 17%, 91%)`	`oklch(92.7% 0.007 261)`
Raisin	`#1F2937`	`rgb(31, 41, 55)`	`hsl(215, 28%, 17%)`	`oklch(27.8% 0.030 257)`
Steel Blue	`#4F7CAC`	`rgb(79, 124, 172)`	`hsl(211, 37%, 49%)`	`oklch(57.4% 0.090 251)`

Why it works and how to use it

Cool Stone is a monochromatic color palette tagged minimal, white, gray. A monochromatic set: the same hue family from Raisin down to Smoke. Saturation is moderate, which keeps it flexible for both interfaces and print. The overall temperature is cool.

Two of the four colors are near-neutral, which leaves room for Steel Blue to lead. Lightness runs from 17% to 97%. Well suited to websites, presentations and branding.

Background: Smoke (#F7F8FA) is the lightest color, so it belongs on large surfaces.
Text: Raisin (#1F2937) on #F7F8FA gives 13.81:1, passing WCAG AAA.
Primary: Steel Blue (#4F7CAC) is the most saturated mid-tone; use it for buttons and links (4.11:1 against the background, fine for UI elements).
Accent: Ice (#E4E7EC) for highlights, badges and hover states.

2 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Smoke on Raisin at 13.81:1.

Preview on a real UI see how the palette feels in context

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Design faster with Cool Stone

A palette preview that turns four colors into a page, so you can judge hierarchy, contrast and mood before you commit.

Primary action Secondary

Card title

Roles are assigned by lightness.

Color blindness simulation

#F7F8FA

#E4E7EC

#1F2937

#4F7CAC

Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.

Palette card

Contrast check WCAG ratios between palette colors

Pair	Sample	Ratio	Level
`#F7F8FA` on `#1F2937`	Aa	13.81:1	AAA
`#E4E7EC` on `#1F2937`	Aa	11.84:1	AAA
`#F7F8FA` on `#4F7CAC`	Aa	4.11:1	AA large only
`#E4E7EC` on `#4F7CAC`	Aa	3.52:1	AA large only
`#1F2937` on `#4F7CAC`	Aa	3.36:1	AA large only
`#F7F8FA` on `#E4E7EC`	Aa	1.17:1	Fail

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