Blue & Dark Blue, Teal Color Palette

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#21364A 33, 54, 74

#257E81 37, 126, 129

#323343 50, 51, 67

#5CA9F5 92, 169, 245

#21364A

Color 1

#257E81

Color 2

#323343

Color 3

#5CA9F5

Color 4

:root {
  --color-1: #21364A;
  --color-2: #257E81;
  --color-3: #323343;
  --color-4: #5CA9F5;
}

colors: {
  'palette-1': '#21364A',
  'palette-2': '#257E81',
  'palette-3': '#323343',
  'palette-4': '#5CA9F5',
}

const palette = [
  '#21364A',
  '#257E81',
  '#323343',
  '#5CA9F5',
];

$color-1: #21364A;
$color-2: #257E81;
$color-3: #323343;
$color-4: #5CA9F5;

Palette Codes 4 COLORS

This is a cool, balanced 4-colour palette mixing related and contrasting tones for a natural feel.

7,582 Views

Added Jun 2026

About this color palette

This is a cool, balanced 4-colour palette mixing related and contrasting tones for a natural feel. It is anchored by Blue (#5CA9F5) and reads as deep and moody, with an average saturation of 49% and lightness of 36%. It works well for calm, professional and modern interfaces.

The colors in this palette

Dark Blue `#21364A`

rgb(33, 54, 74) · hsl(209, 38%, 21%)

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

Teal `#257E81`

rgb(37, 126, 129) · hsl(182, 55%, 33%)

A balanced mid-tone that works well for primary surfaces and UI elements.

Dark Blue `#323343`

rgb(50, 51, 67) · hsl(236, 15%, 23%)

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

Blue `#5CA9F5`

rgb(92, 169, 245) · hsl(210, 88%, 66%)

A vivid, saturated tone that draws the eye — best for accents and highlights.

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
#21364A	#5CA9F5	5:1	Pass	Fail
#323343	#5CA9F5	5:1	Pass	Fail
#21364A	#257E81	2.59:1	Fail	Fail
#257E81	#323343	2.59:1	Fail	Fail
#257E81	#5CA9F5	1.93:1	Fail	Fail
#21364A	#323343	1:1	Fail	Fail

How to use these colors

Background — Blue (#5CA9F5): the lightest tone — a clean base for large areas
Text — Dark Blue (#21364A): the darkest tone — readable for body copy and headings
Primary — Teal (#257E81): the most saturated tone — buttons, links and key UI
Accent — Dark Blue (#21364A): 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 Blue tone, based on colour-wheel harmony. Tap a swatch to explore that colour family.

#E79E55 · Orange #5556E7 · Blue #55E7E6 · Teal #E7559F · Pink