#E4ECF1
#35528E
#203666
#090F26
Background
Primary Accent
Secondary
Body Text

Blueprint Color Palette

#E4ECF1 · #35528E · #203666 · #090F26

AAA
WCAG Grade
15.9:1
Contrast Ratio
962
Saves
2,754
AI Copies
AI Prompt

Use #E4ECF1 as the background. Use #35528E as the primary accent. Use #203666 as secondary. Use #090F26 as body text/supporting color. Palette mood: Blueprint — cool, mono, vintage, night, moody.

Hex Codes, RGB & CMYK Color Values

Technical breakdown for the Blueprint 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: 82.8%
228, 236, 241 5%, 2%, 0%, 5% 203°, 32%, 92%
Primary Accent
Luminance: 8.7%
53, 82, 142 63%, 42%, 0%, 44% 220°, 46%, 38%
Secondary
Luminance: 3.9%
32, 54, 102 69%, 47%, 0%, 60% 221°, 52%, 26%
Body Text
Luminance: 0.5%
9, 15, 38 76%, 61%, 0%, 85% 228°, 62%, 9%

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

#E4ECF1 gently saturated cyan-blue
#35528E gently saturated blue
#203666 gently saturated blue
#090F26 gently saturated blue

Blueprint 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
#090F26 on #E4ECF1
Aa Sample Text
15.86:1 AAA Body text, headings, UI
#E4ECF1 on #090F26
Aa Sample Text
15.86:1 AAA Body text, headings, UI
#203666 on #E4ECF1
Aa Sample Text
9.86:1 AAA Body text, headings, UI
#E4ECF1 on #203666
Aa Sample Text
9.86:1 AAA Body text, headings, UI
#35528E on #E4ECF1
Aa Sample Text
6.39:1 AA Body text, UI
#E4ECF1 on #35528E
Aa Sample Text
6.39:1 AA Body text, UI
#090F26 on #35528E
Aa Sample Text
2.48:1 Fail Decorative use only
#35528E on #090F26
Aa Sample Text
2.48:1 Fail Decorative use only
#090F26 on #203666
Aa Sample Text
1.61:1 Fail Decorative use only
#203666 on #090F26
Aa Sample Text
1.61:1 Fail Decorative use only
#203666 on #35528E
Aa Sample Text
1.54:1 Fail Decorative use only
#35528E on #203666
Aa Sample Text
1.54:1 Fail Decorative use only

Blueprint Color Psychology & Meaning

A blueprint was never blue on purpose: the iron salts simply left the paper that colour wherever the drawing blocked the light, and this palette is sheet pale with diazo deep. It feels technical and impossible, the color of a building drawn before it existed.

Color Harmony: Analogous Scheme

The Blueprint 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

Blueprinting was replaced in the 1950s by diazo printing, which produces the same blue image with cheaper chemistry; the word outlived the process and now means any detailed plan.

Best Design Use Cases

Use the sheet pale for backgrounds, print indigo for primary actions, diazo deep for highlights, and line dark for text.

Industries This Palette Suits

Interiors, hospitality, nightlife brands, cinematic and streaming titles.

Colors That Pair Well With Blueprint

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.

orange

directly opposite #35528E on the wheel — the strongest accent for CTAs and highlights when you need maximum energy

blue

30° beside #35528E — 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 Blueprint Without Breaking Accessibility

  • Use #35528E for buttons and links — it scores 6.4:1 against the #E4ECF1 background (above the 3:1 UI-components threshold).
  • Set body text in #090F26 — 15.9:1 against #E4ECF1 passes WCAG AA (AAA) for long-form reading.
  • Let #203666 carry sidebars, cards and footers — at a mid lightness it separates zones without stealing focus from #35528E.

How to Implement the Blueprint Color Scheme

To use this Blueprint 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 #E4ECF1 for the main background and #35528E for primary buttons. This creates a high-contrast focal point.

Accessibility Note

The contrast ratio between #090F26 and #E4ECF1 is 15.86:1 (AAA). Ensure your body text remains legible.

Blueprint Palette — Frequently Asked Questions

What are the hex codes in the Blueprint color palette?

The Blueprint palette contains #E4ECF1, #35528E, #203666, #090F26. 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 Blueprint color palette accessible (WCAG)?

Yes for its strongest pairings: #090F26 on #E4ECF1 reaches 15.9:1 (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 Blueprint palette?

Beyond its own four colors, #8D7034, #4A3E84, #131516 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 Blueprint palette create?

Blueprint reads as cool, mono, vintage. Gently saturated blue drives the personality, grounded by gently saturated cyan-blue — a combination that works best when the very light base gets most of the canvas.

Can I use the Blueprint color palette commercially?

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

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