Cyan Cobalt Blue (#28589C)

HEX, RGB, HSL, CMYK values + mood/style/use-case color tags. Use this page to keep your colors consistent across web and print.

Preview

Sample Text
This is how text may look on this color.
Best text color: #FFFFFF
Contrast vs white: 7.08:1 — vs black: 2.97:1

Color values

  • HEX #28589C
  • RGB rgb(40, 88, 156)
  • HSL hsl(215, 74%, 61%)
  • CMYK cmyk( 74.36, 43.59, 0, 38.82 )
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Tags

Mood

Playful (195)

Style

Vivid (210) Cool (180)

Use case

Text (210) Button (200) Accent (185)

Tip: tags are heuristic suggestions (helpful for browsing and inspiration).

Color Harmonies

Colors that pair well with #28589C based on color theory relationships.

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

Cyan Cobalt Blue
#28589C Base
#9C6C28
Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

Cyan Cobalt Blue
#28589C Base
#28929C
#32289C
Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

Cyan Cobalt Blue
#28589C Base
#9C2858
#589C28
Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

Cyan Cobalt Blue
#28589C Base
#9C3228
#929C28
Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

Cyan Cobalt Blue
#28589C Base
#9C2892
#9C6C28
#289C32
Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

Cyan Cobalt Blue
#28589C Base
#091322
#18365F
#20467C
#306ABC
#427CCF
#7FA6DE
Shades & Tints

Darker shades and lighter tints of Cyan Cobalt Blue, generated by adjusting lightness while keeping the same hue and saturation.

Shades (darker)

— #050B14
— #0C1B2F
— #132A4B
— #1A3966
— #214981
Cyan Cobalt Blue #28589C Base
— #3472CA
— #6192D6
— #8FB1E2
— #BDD1EE
— #EBF1FA
CSS & SCSS Snippets

Ready-to-use code snippets for #28589C. Click the copy button to copy any snippet to your clipboard.

CSS Properties 
/* Background */
.element {
    background-color: #28589C;
}

/* Text */
.element {
    color: #28589C;
}

/* Border */
.element {
    border: 1px solid #28589C;
}
CSS Gradient 
/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #28589C,
        #E6A952
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #28589C,
        #E6A952
    );
}
SCSS Variable 
// SCSS variable
$cyan-cobalt-blue: #28589C;

// With RGB channels (useful for rgba() usage)
$cyan-cobalt-blue-r: 40;
$cyan-cobalt-blue-g: 88;
$cyan-cobalt-blue-b: 156;

// Usage
.element {
    background-color: $cyan-cobalt-blue;
    color: rgba($cyan-cobalt-blue-r, $cyan-cobalt-blue-g, $cyan-cobalt-blue-b, 0.8);
}
Color Blindness Simulation

How Cyan Cobalt Blue appears to people with different types of color vision deficiency.

Normal Vision #28589C How the color appears with full color vision.
Deuteranopia #4E4E9C Deuteranopia affects ~8% of males. Green cones are absent, making it difficult to distinguish red from green. The most common form of color blindness.
Protanopia #54549C Protanopia affects ~1% of males. Red cones are absent, causing reds to appear dark and indistinguishable from greens and browns.
Tritanopia #006464 Tritanopia is rare (~0.003%). Blue cones are absent, making blue and yellow difficult to distinguish. Blues may appear green, yellows appear pink.
Achromatopsia #585858 Achromatopsia is complete color blindness. The world is seen entirely in shades of grey. Affects ~1 in 30,000 people.
Similar Named Colors

The closest named colors to Cyan Cobalt Blue ranked by perceptual difference (Delta-E 2000 — lower = more similar).

Cyan Cobalt Blue #28589C Base
B'dazzled Blue #2E5894 ΔE 1.04
Medium Teal Blue #0054B4 ΔE 3.12
Medium Electric Blue #035096 ΔE 3.28
USAFA Blue #004F98 ΔE 3.40

How to use this color

  1. Copy HEX for CSS and design tools, or RGB/HSL for UI adjustments.
  2. Use CMYK when preparing print assets (posters, packaging, brochures).
  3. Check contrast before using it for text or important UI elements.