Palette 8,403 of 15,000,000

Nocturnal Slate Velvet

Nocturnal Slate Velvet: a dark monochromatic palette of #40697E, #08597F, #144051, #052B42, #001923. Nocturnal, focused and cinematic; best contrast 3.04:1.

About this palette

A cool palette of 5 colors drawing on blue, black, with a tight lightness range that stays soft and cohesive. Its lightest and darkest colors reach a contrast of 3.04:1, better for large type and decoration. Open any color for its conversions, shades, harmonies and contrast.

Colors

  • ≈ Stellar#40697E

    A medium, muted blue (Stellar) that brings trust and steadiness. White text sits comfortably on it.

  • ≈ Grand Bleu#08597F

    A dark, moderately saturated blue (Grand Bleu) that brings quiet confidence. White text sits comfortably on it.

  • ≈ Cold and Dark#144051

    A dark, muted blue (Cold and Dark) that brings trust and steadiness. White text sits comfortably on it.

  • ≈ Midnight Ocean#052B42

    A very dark, muted blue (Midnight Ocean) that brings trust and steadiness. White text sits comfortably on it.

  • ≈ Oxford by Night#001923

    A very dark, muted blue (Oxford by Night) that brings open, airy calm. White text sits comfortably on it.

Tags

CoolMutedDarkBlue

Psychology

TrustworthyPowerfulCalmFormalDependable

Meaning

StabilityEleganceLoyaltyAuthoritySky

Applications

BankingLuxury BrandsSoftwareDark ModeHealthcare

Similar palettes

Accessibility

  • On white18.05:1Excellent 5/5
  • On black3.53:1Fair 2/5
  • Color blind friendly99% similarExcellent 5/5

Contrast is the best any color in the palette reaches on a plain white or black background. Color blind friendly shows how much of the difference between the colors is kept under the common kinds of color blindness.

Colors and suggested roles
ColorRoleHEXLightness
≈ SlateText#40697E50%
≈ SlatePrimary#08597F44%
≈ CharcoalAccent#14405135%
≈ InkSurface#052B4228%
≈ NavyBackground#00192320%

No palette color is readable as text on the background, so use #E4F5FE for text.

CSS variables
:root {
  --color-background: #001923;
  --color-surface: #052b42;
  --color-primary: #08597f;
  --color-accent: #144051;
  --color-text: #e4f5fe;
}
Tailwind v4 (@theme)
@theme {
  --color-background: #001923;
  --color-surface: #052b42;
  --color-primary: #08597f;
  --color-accent: #144051;
  --color-ink: #e4f5fe;
}

About this palette

Nocturnal Slate Velvet is palette number 8,403 of Tintly's fifteen million generated palettes. It is a dark palette built on a monochromatic scheme, and it is anchored by Slate (#08597F), the most saturated of its five colors.

The palette reads as nocturnal, focused and cinematic. Its colors run from Slate (#40697E) at the light end to Navy (#001923) at the dark end, covering 20% to 50% perceptual lightness, so it has real range rather than five similar tones.

The five colors

1. ≈ Slate #40697E: suggested role text. It is a cyan color with 50% lightness and a chroma of 0.057.

2. ≈ Slate #08597F: suggested role primary. It is a blue color with 44% lightness and a chroma of 0.093.

3. ≈ Charcoal #144051: suggested role accent. It is a cyan color with 35% lightness and a chroma of 0.056.

4. ≈ Ink #052B42: suggested role surface. It is a blue color with 28% lightness and a chroma of 0.059.

5. ≈ Navy #001923: suggested role background. It is a cyan color with 20% lightness and a chroma of 0.038.

Harmony and structure

All five colors share almost the same hue and differ mainly in lightness and saturation. Monochromatic palettes are the easiest to keep harmonious, because nothing competes for attention.

In this palette the hues fall in the cyan and blue families, spread across 14 degrees of the OKLCH hue circle. Dark palettes keep chroma between 0.04 and 0.14, and lightness between 20% and 52%, which is why the set feels consistent.

Temperature and mood

Overall the palette is cool: 0 of its 5 chromatic colors lean warm and 5 lean cool. Its average chroma of 0.061 makes the saturation balanced.

That combination suits dark-mode interfaces, gaming and music apps and luxury packaging, and it is a good fit when you want a design to feel nocturnal, focused and cinematic.

Accessibility and contrast

The strongest pairing is Slate (#40697E) with Navy (#001923) at a contrast ratio of 3.04:1, which is WCAG AA large. Across all 10 possible pairs, 0 reach the 4.5:1 AA level for normal text and 1 more reach 3:1 for large text.

No other palette color reaches 4.5:1 on the background (#001923), so this page suggests #E4F5FE for text, a lightened Slate that reaches 16.15:1. Check any pair you use in the contrast checker.

Under tritanopia (reduced blue sensitivity), #40697E and #08597F may look alike, so avoid using that difference alone to carry meaning.

How to use it

Suggested roles: #001923 as the background, #052B42 for cards and surfaces, #08597F as the primary brand color, #144051 as the accent, and #E4F5FE for text (a computed lighter shade of Slate, because no palette color is readable on that background). A reliable starting split is 60% background and surface, 30% primary and 10% accent.

Use the lightest color for large areas, the mid tones for structure, and the darkest for text. Add contrast through lightness, since hue will not do it for you.

Typical uses for a dark palette include dark-mode interfaces, gaming and music apps, luxury packaging and cinematic presentations. Open it in the generator to lock the colors you love and reroll the rest, or in the visualizer to see it on real layouts.

More palettes like this

Frequently asked questions

Is Nocturnal Slate Velvet accessible?

Its best pair reaches 3.04:1 (#40697E on #001923). 0 of 10 pairs reach WCAG AA for normal text. Always check the exact text and background you use.

Which color should be the main brand color?

Slate (#08597F) is the most saturated color that is neither the lightest nor the darkest, which makes it the natural primary.

What is this palette good for?

It suits dark-mode interfaces, gaming and music apps, luxury packaging and cinematic presentations, where a nocturnal, focused and cinematic feel works well.

Nocturnal Slate Velvet Color Palette (40697E, 08597F, 144051, 052B42, 001923) · Tintly