#DCDDDB
#9A9C9C
#5A5D5F
#16191C
Background
Primary Accent
Secondary
Body Text

Thunderhead Color Palette

#DCDDDB · #9A9C9C · #5A5D5F · #16191C

AAA
WCAG Grade
12.9:1
Contrast Ratio
783
Saves
1,560
AI Copies
AI Prompt

Use #DCDDDB as the background. Use #9A9C9C as the primary accent. Use #5A5D5F as secondary. Use #16191C as body text/supporting color. Palette mood: Thunderhead — moody, night, cool, mono.

Hex Codes, RGB & CMYK Color Values

Technical breakdown for the Thunderhead 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: 72.0%
220, 221, 219 0%, 0%, 1%, 13% 90°, 3%, 86%
Primary Accent
Luminance: 33.0%
154, 156, 156 1%, 0%, 0%, 39% 180°, 1%, 61%
Secondary
Luminance: 10.8%
90, 93, 95 5%, 2%, 0%, 63% 204°, 3%, 36%
Body Text
Luminance: 0.9%
22, 25, 28 21%, 11%, 0%, 89% 210°, 12%, 10%

Thunderhead 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 Thunderhead palette — click any swatch to copy its hex.

#DCDDDB neutral gray
#9A9C9C neutral gray
#5A5D5F neutral gray
#16191C muted cyan-blue

Thunderhead 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
#16191C on #DCDDDB
Aa Sample Text
12.95:1 AAA Body text, headings, UI
#DCDDDB on #16191C
Aa Sample Text
12.95:1 AAA Body text, headings, UI
#16191C on #9A9C9C
Aa Sample Text
6.39:1 AA Body text, UI
#9A9C9C on #16191C
Aa Sample Text
6.39:1 AA Body text, UI
#5A5D5F on #DCDDDB
Aa Sample Text
4.87:1 AA Body text, UI
#DCDDDB on #5A5D5F
Aa Sample Text
4.87:1 AA Body text, UI
#16191C on #5A5D5F
Aa Sample Text
2.66:1 Fail Decorative use only
#5A5D5F on #16191C
Aa Sample Text
2.66:1 Fail Decorative use only
#5A5D5F on #9A9C9C
Aa Sample Text
2.40:1 Fail Decorative use only
#9A9C9C on #5A5D5F
Aa Sample Text
2.40:1 Fail Decorative use only
#9A9C9C on #DCDDDB
Aa Sample Text
2.02:1 Fail Decorative use only
#DCDDDB on #9A9C9C
Aa Sample Text
2.02:1 Fail Decorative use only

Thunderhead Color Psychology & Meaning

A cumulonimbus base goes nearly black because sunlight cannot get through several kilometres of water, and the grey above it is the anvil catching light the ground never sees, and this palette is anvil pale with base mid. It feels ominous and stacked, the color of weather arriving as a wall.

Color Harmony: Triadic Scheme

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

Hue Wheel

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

History & Design Context

Cumulonimbus bases darken through attenuation rather than colour, which is why a storm can look black while the radar shows no rain beneath it yet.

Best Design Use Cases

Use the anvil pale for hero surfaces, storm gray for interactive elements, base mid for accents, and squall dark for text.

Industries This Palette Suits

Design systems, developer tools, dashboards, technical documentation.

Colors That Pair Well With Thunderhead

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 Thunderhead Without Breaking Accessibility

  • Avoid #9A9C9C for small UI elements on #DCDDDB — at 2.0:1 it misses the 3:1 WCAG threshold; darken it with a shade from the ramp below.
  • Set body text in #16191C — 12.9:1 against #DCDDDB passes WCAG AA (AAA) for long-form reading.
  • Let #5A5D5F carry sidebars, cards and footers — at a mid lightness it separates zones without stealing focus from #9A9C9C.

How to Implement the Thunderhead Color Scheme

To use this Thunderhead 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 #DCDDDB for the main background and #9A9C9C for primary buttons. This creates a high-contrast focal point.

Accessibility Note

The contrast ratio between #16191C and #DCDDDB is 12.95:1 (AAA). Ensure your body text remains legible.

Thunderhead Palette — Frequently Asked Questions

What are the hex codes in the Thunderhead color palette?

The Thunderhead palette contains #DCDDDB, #9A9C9C, #5A5D5F, #16191C. 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 Thunderhead color palette accessible (WCAG)?

Yes for its strongest pairings: #16191C on #DCDDDB reaches 12.9:1 (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 Thunderhead 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 Thunderhead palette create?

Thunderhead reads as moody, night, cool. 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 Thunderhead color palette commercially?

Yes. Individual color values can't be copyrighted, so the Thunderhead 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 Thunderhead 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 Thunderhead's exact values, including the tint and shade ramps shown above.

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