#38342E
#221F1B
#5A544A
#100E0C
Background
Primary Accent
Secondary
Body Text

Deep Tunnel Color Palette

#38342E · #221F1B · #5A544A · #100E0C

Fail
WCAG Grade
1.6:1
Contrast Ratio
849
Saves
2,032
AI Copies
AI Prompt

Use #38342E as the background. Use #221F1B as the primary accent. Use #5A544A as secondary. Use #100E0C as body text/supporting color. Palette mood: Deep Tunnel — moody, mono, night, vintage.

Hex Codes, RGB & CMYK Color Values

Technical breakdown for the Deep Tunnel 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: 3.5%
56, 52, 46 0%, 7%, 18%, 78% 36°, 10%, 20%
Primary Accent
Luminance: 1.4%
34, 31, 27 0%, 9%, 21%, 87% 34°, 11%, 12%
Secondary
Luminance: 9.0%
90, 84, 74 0%, 7%, 18%, 65% 37°, 10%, 32%
Body Text
Luminance: 0.5%
16, 14, 12 0%, 12%, 25%, 94% 30°, 14%, 5%

Deep Tunnel 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 Deep Tunnel palette — click any swatch to copy its hex.

#38342E muted orange
#221F1B muted orange
#5A544A muted orange
#100E0C muted orange

Deep Tunnel 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
#100E0C on #5A544A
Aa Sample Text
2.57:1 Fail Decorative use only
#5A544A on #100E0C
Aa Sample Text
2.57:1 Fail Decorative use only
#5A544A on #221F1B
Aa Sample Text
2.19:1 Fail Decorative use only
#221F1B on #5A544A
Aa Sample Text
2.19:1 Fail Decorative use only
#5A544A on #38342E
Aa Sample Text
1.65:1 Fail Decorative use only
#38342E on #5A544A
Aa Sample Text
1.65:1 Fail Decorative use only
#100E0C on #38342E
Aa Sample Text
1.56:1 Fail Decorative use only
#38342E on #100E0C
Aa Sample Text
1.56:1 Fail Decorative use only
#221F1B on #38342E
Aa Sample Text
1.33:1 Fail Decorative use only
#38342E on #221F1B
Aa Sample Text
1.33:1 Fail Decorative use only
#100E0C on #221F1B
Aa Sample Text
1.17:1 Fail Decorative use only
#221F1B on #100E0C
Aa Sample Text
1.17:1 Fail Decorative use only

Deep Tunnel Color Psychology & Meaning

A deep tunnel is a brown-grey tube where the walls disappear into black, and the only information is a pale disc of exit light, and this palette is tunnel brown with lit wall. It feels endless and enclosed, the color of a corridor longer than it looks.

Color Harmony: Analogous Scheme

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

Hue Wheel

A analogous palette is often preferred by professional designers because it creates a calm, serene atmosphere by using neighboring colors.

History & Design Context

Tunnel walls appear warm grey because most are lined with concrete or brick that reflects the warmer part of artificial light, and the falloff of that light hides both ends at once.

Best Design Use Cases

Use the tunnel brown for large surfaces, tunnel dark for links and buttons, lit wall for fine details, and tunnel black for text.

Industries This Palette Suits

Film and television, thriller and horror titles, game studios.

Colors That Pair Well With Deep Tunnel

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.

cyan-blue

directly opposite #221F1B on the wheel — the strongest accent for CTAs and highlights when you need maximum energy

yellow

30° beside #221F1B — a calm secondary that extends the palette without adding tension

tinted neutral

a paper-white carrying the palette's own hue — perfect for surfaces and dividers

Using Deep Tunnel Without Breaking Accessibility

  • Avoid #221F1B for small UI elements on #38342E — at 1.3:1 it misses the 3:1 WCAG threshold; darken it with a shade from the ramp below.
  • Don't set body copy in #100E0C on #38342E — 1.6:1 fails WCAG AA; keep it for large decorative headings only.
  • Let #5A544A carry sidebars, cards and footers — at a mid lightness it separates zones without stealing focus from #221F1B.

How to Implement the Deep Tunnel Color Scheme

To use this Deep Tunnel 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 #38342E for the main background and #221F1B for primary buttons. This creates a high-contrast focal point.

Accessibility Note

The contrast ratio between #100E0C and #38342E is 1.56:1 (Fail). Ensure your body text remains legible.

Deep Tunnel Palette — Frequently Asked Questions

What are the hex codes in the Deep Tunnel color palette?

The Deep Tunnel palette contains #38342E, #221F1B, #5A544A, #100E0C. 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 Deep Tunnel color palette accessible (WCAG)?

Yes for its strongest pairings: #100E0C on #5A544A reaches 2.6:1 (Fail). 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 Deep Tunnel palette?

Beyond its own four colors, #4F5863, #21221C, #EEEDEC 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 Deep Tunnel palette create?

Deep Tunnel reads as moody, mono, night. Muted orange drives the personality, grounded by muted orange — a combination that works best when the deep base gets most of the canvas.

Can I use the Deep Tunnel color palette commercially?

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

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