Nocturnal Cobalt Island
Nocturnal Cobalt Island: a dark analogous palette of #1375A1, #305B7C, #0E3581, #1F1C4D, #160137. Nocturnal, focused and cinematic; best contrast 3.73:1.
A cool palette of 5 colors drawing on blue, purple, with a moderate lightness range. Its lightest and darkest colors reach a contrast of 3.73:1, better for large type and decoration. Open any color for its conversions, shades, harmonies and contrast.
Colors
- ≈ Bleu Ciel#1375A1
A medium, moderately saturated blue (Bleu Ciel) that brings open, airy calm. White text sits comfortably on it.
- ≈ Dark Blue#305B7C
A medium, muted blue (Dark Blue) that brings quiet confidence. White text sits comfortably on it.
- ≈ Atlantic Navy#0E3581
A dark, moderately saturated blue (Atlantic Navy) that brings trust and steadiness. White text sits comfortably on it.
- ≈ Fly-by-Night#1F1C4D
A very dark, moderately saturated purple (Fly-by-Night) that brings quiet luxury. White text sits comfortably on it.
- ≈ Quiet Abyss#160137
A very dark, moderately saturated purple (Quiet Abyss) that brings a creative, premium air. White text sits comfortably on it.
Tags
Psychology
Meaning
Applications
Similar palettes
Accessibility
- On white19.20:1Excellent 5/5
- On black4.08:1Fair 2/5
- Color blind friendly98% 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.
| Color | Role | HEX | Lightness |
|---|---|---|---|
| ≈ Teal | Text | #1375A1 | 53% |
| ≈ Slate | Surface | #305B7C | 46% |
| ≈ Cobalt | Primary | #0E3581 | 35% |
| ≈ Ink | Accent | #1F1C4D | 26% |
| ≈ Midnight | Background | #160137 | 18% |
No palette color is readable as text on the background, so use #E5F5FE for text.
:root {
--color-background: #160137;
--color-surface: #305b7c;
--color-primary: #0e3581;
--color-accent: #1f1c4d;
--color-text: #e5f5fe;
}
@theme {
--color-background: #160137;
--color-surface: #305b7c;
--color-primary: #0e3581;
--color-accent: #1f1c4d;
--color-ink: #e5f5fe;
}
About this palette
Nocturnal Cobalt Island is palette number 10,035 of Tintly's fifteen million generated palettes. It is a dark palette built on a analogous scheme, and it is anchored by Cobalt (#0E3581), the most saturated of its five colors.
The palette reads as nocturnal, focused and cinematic. Its colors run from Teal (#1375A1) at the light end to Midnight (#160137) at the dark end, covering 18% to 53% perceptual lightness, so it has real range rather than five similar tones.
The five colors
1. ≈ Teal #1375A1: suggested role text. It is a cyan color with 53% lightness and a chroma of 0.107.
2. ≈ Slate #305B7C: suggested role surface. It is a blue color with 46% lightness and a chroma of 0.072.
3. ≈ Cobalt #0E3581: suggested role primary. It is a blue color with 35% lightness and a chroma of 0.136.
4. ≈ Ink #1F1C4D: suggested role accent. It is a violet color with 26% lightness and a chroma of 0.087.
5. ≈ Midnight #160137: suggested role background. It is a violet color with 18% lightness and a chroma of 0.097.
Harmony and structure
The hues sit side by side on the color wheel, spanning roughly 60 degrees. Analogous palettes feel natural and flowing, like a sunset or a stretch of coastline.
In this palette the hues fall in the cyan, blue and violet families, spread across 58 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 4 lean cool. Its average chroma of 0.1 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 Teal (#1375A1) with Midnight (#160137) at a contrast ratio of 3.73:1, which is WCAG AA large. Across all 10 possible pairs, 0 reach the 4.5:1 AA level for normal text and 2 more reach 3:1 for large text.
No other palette color reaches 4.5:1 on the background (#160137), so this page suggests #E5F5FE for text, a lightened Teal that reaches 17.21:1. Check any pair you use in the contrast checker.
All five colors stay distinguishable under protanopia, deuteranopia and tritanopia simulations, which is a good sign, although it is no substitute for testing with real users.
How to use it
Suggested roles: #160137 as the background, #305B7C for cards and surfaces, #0E3581 as the primary brand color, #1F1C4D as the accent, and #E5F5FE for text (a computed lighter shade of Teal, because no palette color is readable on that background). A reliable starting split is 60% background and surface, 30% primary and 10% accent.
Let one hue lead and let the others support it. Keep one color noticeably lighter or darker than the rest so the layout has a clear focal point.
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 Cobalt Island accessible?
Its best pair reaches 3.73:1 (#1375A1 on #160137). 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?
Cobalt (#0E3581) 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.