#E5E7EC · #333A6E · #1F2450 · #090B22
Use #E5E7EC as the background. Use #333A6E as the primary accent. Use #1F2450 as secondary. Use #090B22 as body text/supporting color. Palette mood: Blue-Black — mono, cool, vintage, royal, moody.
Technical breakdown for the Blue-Black 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: 79.9% | 229, 231, 236 | 3%, 2%, 0%, 7% | 223°, 16%, 91% | ||
| Primary Accent Luminance: 4.9% | 51, 58, 110 | 54%, 47%, 0%, 57% | 233°, 37%, 32% | ||
| Secondary Luminance: 2.1% | 31, 36, 80 | 61%, 55%, 0%, 69% | 234°, 44%, 22% | ||
| Body Text Luminance: 0.4% | 9, 11, 34 | 74%, 68%, 0%, 87% | 235°, 58%, 8% |
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 Blue-Black palette — click any swatch to copy its hex.
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 |
|---|---|---|---|---|
| #090B22 on #E5E7EC |
Aa Sample Text
| 15.68:1 | AAA | Body text, headings, UI |
| #E5E7EC on #090B22 |
Aa Sample Text
| 15.68:1 | AAA | Body text, headings, UI |
| #1F2450 on #E5E7EC |
Aa Sample Text
| 11.90:1 | AAA | Body text, headings, UI |
| #E5E7EC on #1F2450 |
Aa Sample Text
| 11.90:1 | AAA | Body text, headings, UI |
| #333A6E on #E5E7EC |
Aa Sample Text
| 8.61:1 | AAA | Body text, headings, UI |
| #E5E7EC on #333A6E |
Aa Sample Text
| 8.61:1 | AAA | Body text, headings, UI |
| #090B22 on #333A6E |
Aa Sample Text
| 1.82:1 | Fail | Decorative use only |
| #333A6E on #090B22 |
Aa Sample Text
| 1.82:1 | Fail | Decorative use only |
| #1F2450 on #333A6E |
Aa Sample Text
| 1.38:1 | Fail | Decorative use only |
| #333A6E on #1F2450 |
Aa Sample Text
| 1.38:1 | Fail | Decorative use only |
| #090B22 on #1F2450 |
Aa Sample Text
| 1.32:1 | Fail | Decorative use only |
| #1F2450 on #090B22 |
Aa Sample Text
| 1.32:1 | Fail | Decorative use only |
The Blue-Black 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.
A analogous palette is often preferred by professional designers because it creates a calm, serene atmosphere by using neighboring colors.
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.
directly opposite #333A6E on the wheel — the strongest accent for CTAs and highlights when you need maximum energy
30° beside #333A6E — a calm secondary that extends the palette without adding tension
a ink-black carrying the palette's own hue — perfect for surfaces and dividers
To use this Blue-Black 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.
:root {
/* {name} Palette - ihatecolors.com */{'
'} --color-bg: {colors[0]};{'
'} --color-primary: {colors[1]};{'
'} --color-secondary: {colors[2]};{'
'} --color-text: {colors[3]};{'
'} {'}'}Use #E5E7EC for the main background and #333A6E for primary buttons. This creates a high-contrast focal point.
The contrast ratio between #090B22 and #E5E7EC is 15.68:1 (AAA). Ensure your body text remains legible.
The Blue-Black palette contains #E5E7EC, #333A6E, #1F2450, #090B22. 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.
Yes for its strongest pairings: #090B22 on #E5E7EC reaches 15.7:1 (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.
Beyond its own four colors, #7A7338, #4C3C68, #141415 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.
Blue-Black reads as mono, cool, vintage. Gently saturated blue drives the personality, grounded by muted blue — a combination that works best when the very light base gets most of the canvas.
Yes. Individual color values can't be copyrighted, so the Blue-Black palette is free for personal, client and commercial work — websites, branding, apps, print and social content, with no attribution required.
Use the export panel on this page: CSS variables, a Tailwind config block, SCSS variables, or a Figma copy list are generated from Blue-Black's exact values, including the tint and shade ramps shown above.