Dark Blue & Black, Gray Color Palette

Back to palettes

#0A0A0A 10, 10, 10

#66605D 102, 96, 93

#263342 38, 51, 66

#223641 34, 54, 65

#0A0A0A

Color 1

#66605D

Color 2

#263342

Color 3

#223641

Color 4

:root {
  --color-1: #0A0A0A;
  --color-2: #66605D;
  --color-3: #263342;
  --color-4: #223641;
}

colors: {
  'palette-1': '#0A0A0A',
  'palette-2': '#66605D',
  'palette-3': '#263342',
  'palette-4': '#223641',
}

const palette = [
  '#0A0A0A',
  '#66605D',
  '#263342',
  '#223641',
];

$color-1: #0A0A0A;
$color-2: #66605D;
$color-3: #263342;
$color-4: #223641;

Palette Codes 4 COLORS

This is a cool, calm and understated 4-colour palette whose tones sit close together for a smooth, cohesive feel.

487 Views

Added Jun 2026

About this color palette

This is a cool, calm and understated 4-colour palette whose tones sit close together for a smooth, cohesive feel. It is anchored by Dark Blue (#223641) and reads as deep and moody, with an average saturation of 16% and lightness of 20%. It works well for calm, professional and modern interfaces.

The colors in this palette

Black `#0A0A0A`

rgb(10, 10, 10) · hsl(0, 0%, 4%)

A deep, low-lightness tone — strong for text, headings and bold accents.

Gray `#66605D`

rgb(102, 96, 93) · hsl(20, 5%, 38%)

A soft, muted tone that suits calm backgrounds and large surfaces.

Dark Blue `#263342`

rgb(38, 51, 66) · hsl(212, 27%, 20%)

A deep, low-lightness tone — strong for text, headings and bold accents.

Dark Blue `#223641`

rgb(34, 54, 65) · hsl(201, 31%, 19%)

A deep, low-lightness tone — strong for text, headings and bold accents.

Accessibility & contrast

Colour contrast decides whether text stays readable. Here is how each pair of colours in this palette performs when one is used as text on the other, measured against the WCAG standard (AA needs 4.5:1, AAA needs 7:1).

Text	Background	Ratio	AA	AAA
#0A0A0A	#66605D	3.2:1	Fail	Fail
#66605D	#263342	2.08:1	Fail	Fail
#66605D	#223641	2.03:1	Fail	Fail
#0A0A0A	#223641	1.58:1	Fail	Fail
#0A0A0A	#263342	1.54:1	Fail	Fail
#263342	#223641	1.02:1	Fail	Fail

How to use these colors

Background — Gray (#66605D): the lightest tone — a clean base for large areas
Text — Black (#0A0A0A): the darkest tone — readable for body copy and headings
Primary — Dark Blue (#223641): the most saturated tone — buttons, links and key UI
Accent — Dark Blue (#263342): a secondary highlight for badges and details

Colors that pair with this palette

Want to extend this palette? These colours pair naturally with its dominant Dark Blue tone, based on colour-wheel harmony. Tap a swatch to explore that colour family.

#8D5435 · Orange #35428D · Blue #358D80 · Teal #8D356E · Pink

Frequently asked questions

What colours are in this palette?

This palette has 4 colours: Black (#0A0A0A), Gray (#66605D), Dark Blue (#263342) and Dark Blue (#223641).

Is this a warm or cool colour palette?

It is a cool palette — its tones lean toward blues, greens and purples, which feel calm and modern.

What are the hex codes for this palette?

The hex codes are #0A0A0A, #66605D, #263342 and #223641. You can copy them as CSS variables, Tailwind, SCSS or JSON from the code panel above.

Is this palette accessible for text?

The colours are fairly close in contrast, so pair them carefully for text — put a very light or very dark colour behind body text, and check the contrast table above.