#E4E5E4
#9A9C9C
#5B5E5E
#191B1C
Background
Primary Accent
Secondary
Body Text

Slate Color Palette

#E4E5E4 · #9A9C9C · #5B5E5E · #191B1C

AAA
WCAG Grade
13.7:1
Contrast Ratio
981
Saves
1,931
AI Copies
AI Prompt

Use #E4E5E4 as the background. Use #9A9C9C as the primary accent. Use #5B5E5E as secondary. Use #191B1C as body text/supporting color. Palette mood: Slate — cool, mono, moody, earthy, vintage.

Hex Codes, RGB & CMYK Color Values

Technical breakdown for the Slate color scheme. Use these values for web design (HEX/RGB), print projects (CMYK), or specialized design software (HSL).

Swatch Design Role HEX RGB CMYK HSL
Background
Luminance: 78.1%
228, 229, 228 0%, 0%, 0%, 10% 120°, 2%, 90%
Primary Accent
Luminance: 33.0%
154, 156, 156 1%, 0%, 0%, 39% 180°, 1%, 61%
Secondary
Luminance: 11.0%
91, 94, 94 3%, 0%, 0%, 63% 180°, 2%, 36%
Body Text
Luminance: 1.1%
25, 27, 28 11%, 4%, 0%, 89% 200°, 6%, 10%

Slate Tints & Shades

Hover states, borders and elevation need lighter and darker steps of your base colors. Here are computed tints and shades for every color in the Slate palette — click any swatch to copy its hex.

#E4E5E4 neutral gray
#9A9C9C neutral gray
#5B5E5E neutral gray
#191B1C neutral gray

Slate Palette Contrast Matrix (WCAG 2.1)

Every color tested as text on every other color as background. Body copy needs 4.5:1 (AA), large text and UI components 3:1. AAA requires 7:1.

Text on Background Preview Ratio Grade Safe For
#191B1C on #E4E5E4
Aa Sample Text
13.69:1 AAA Body text, headings, UI
#E4E5E4 on #191B1C
Aa Sample Text
13.69:1 AAA Body text, headings, UI
#191B1C on #9A9C9C
Aa Sample Text
6.26:1 AA Body text, UI
#9A9C9C on #191B1C
Aa Sample Text
6.26:1 AA Body text, UI
#5B5E5E on #E4E5E4
Aa Sample Text
5.18:1 AA Body text, UI
#E4E5E4 on #5B5E5E
Aa Sample Text
5.18:1 AA Body text, UI
#191B1C on #5B5E5E
Aa Sample Text
2.64:1 Fail Decorative use only
#5B5E5E on #191B1C
Aa Sample Text
2.64:1 Fail Decorative use only
#5B5E5E on #9A9C9C
Aa Sample Text
2.37:1 Fail Decorative use only
#9A9C9C on #5B5E5E
Aa Sample Text
2.37:1 Fail Decorative use only
#9A9C9C on #E4E5E4
Aa Sample Text
2.19:1 Fail Decorative use only
#E4E5E4 on #9A9C9C
Aa Sample Text
2.19:1 Fail Decorative use only

Slate Color Psychology & Meaning

Slate splits along planes laid down in mud 400 million years ago, so a roof is quite literally stacked with ancient sediment, and this palette is split pale with ridge mid. It feels ordered and austere, the color of a town where every roof matches.

Color Harmony: Custom Scheme

The Slate palette is built using a custom relationship between its hues. This ensures that even with high-contrast accents, the overall scheme feels balanced and intentional.

Hue Wheel

A custom palette is often preferred by professional designers because it balances visual interest with cohesion.

History & Design Context

Slate is metamorphosed shale, and its cleavage lets quarrymen split blocks into sheets by hand; Welsh slate roofed the world's cities through the nineteenth century.

Best Design Use Cases

Use the split pale for page backgrounds, slate gray for calls to action, ridge mid for card accents, and quarry dark for text.

Industries This Palette Suits

Design systems, developer tools, dashboards, technical documentation.

Colors That Pair Well With Slate

Need a fifth color? These three companions are computed from the palette's own hue positions on the color wheel, so they extend the scheme without breaking its harmony.

red

directly opposite #9A9C9C on the wheel — the strongest accent for CTAs and highlights when you need maximum energy

cyan-blue

30° beside #9A9C9C — a calm secondary that extends the palette without adding tension

tinted neutral

a ink-black carrying the palette's own hue — perfect for surfaces and dividers

Using Slate Without Breaking Accessibility

  • Avoid #9A9C9C for small UI elements on #E4E5E4 — at 2.2:1 it misses the 3:1 WCAG threshold; darken it with a shade from the ramp below.
  • Set body text in #191B1C — 13.7:1 against #E4E5E4 passes WCAG AA (AAA) for long-form reading.
  • Let #5B5E5E carry sidebars, cards and footers — at a mid lightness it separates zones without stealing focus from #9A9C9C.

How to Implement the Slate Color Scheme

To use this Slate color palette in your web project, you can copy the following CSS variables or Tailwind CSS configuration. These roles ensure your UI maintains accessibility and visual hierarchy.

Option 1: CSS Variables

:root { 
  /* {name} Palette - ihatecolors.com */{'
'}  --color-bg: {colors[0]};{'
'}  --color-primary: {colors[1]};{'
'}  --color-secondary: {colors[2]};{'
'}  --color-text: {colors[3]};{'
'} {'}'}

Web Design Tip

Use #E4E5E4 for the main background and #9A9C9C for primary buttons. This creates a high-contrast focal point.

Accessibility Note

The contrast ratio between #191B1C and #E4E5E4 is 13.69:1 (AAA). Ensure your body text remains legible.

Slate Palette — Frequently Asked Questions

What are the hex codes in the Slate color palette?

The Slate palette contains #E4E5E4, #9A9C9C, #5B5E5E, #191B1C. Click any swatch on this page to copy its value, or export all four at once as CSS variables, Tailwind config, SCSS or a Figma-ready list.

Is the Slate color palette accessible (WCAG)?

Yes for its strongest pairings: #191B1C on #E4E5E4 reaches 13.7:1 (AAA). For body text always keep a 4.5:1 ratio and for large UI elements 3:1 — the full contrast matrix above shows the exact score for every color-on-color combination in this palette.

What colors go well with the Slate palette?

Beyond its own four colors, #9D9B9B, #929CA5, #141514 extend it naturally: the complementary hue for high-energy accents, an analogous neighbor for calm transitions, and a tinted neutral for surfaces. All three are computed from this palette's hues on the color wheel.

What mood does the Slate palette create?

Slate reads as cool, mono, moody. Neutral gray drives the personality, grounded by neutral gray — a combination that works best when the very light base gets most of the canvas.

Can I use the Slate color palette commercially?

Yes. Individual color values can't be copyrighted, so the Slate palette is free for personal, client and commercial work — websites, branding, apps, print and social content, with no attribution required.

How do I add the Slate palette to Tailwind or CSS?

Use the export panel on this page: CSS variables, a Tailwind config block, SCSS variables, or a Figma copy list are generated from Slate's exact values, including the tint and shade ramps shown above.

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