Color Regal Blue aqua-blue (#203f58):
HEX, RGB color codes for HTML and CSS

The Comprehensive Guide to Regal Blue aqua-blue (#203f58):
Its Meaning and Harmonious Color Matches in Design.

Regal Blue is a color with a HTML hex code of #203f58.

Hue Family:

aqua-blues Family:

moderately saturated

colorful tone




medium chroma

Color Information about Regal Blue / #203f58

The HTML HEX code is #203f58. The corresponding color name is "Regal Blue". In RGB values (additive color space used for Digital Displays), this HEX code translates to Red (R): 32%, Green (G): 63%, Blue (B): 88%. In the CMYK color model (subtractive color model used in printing), it is represented by Cyan (C): 64%, Magenta (M): 28%, Yellow (Y):0%, Black (K): 65%. In the HSL color space, #203f58 has a hue of 207°, saturation of 47%, and lightness of 24%. The HSV representation is 207° for hue, 64% for saturation, and 35% for value.

In the CIE-LAB color space, the color is denoted by L* (lightness) = 25, a* (green to red) = -3, and b* (blue to yellow) = -18. The XYZ representation is X: 4, Y: 5, Z: 10. In the YUV color space, it translates to Y (luminance) = 0.2219, U (chrominance) = 0.0606, and V (chrominance) = -0.0846.

The decimal value of the color is 2113368. The closest Web-safe HEX code is #333366. Variations of the colour are #3B75A5 for a 20% lighter version and #050B0F for a 20% darker version.

For the color with hex value #203f58, the correlated color temperature (CT) is estimated to be 32696 Kelvin (32696K).

The approximate wavelength of #203f58 is around 486.50nm.

HEX Code203f58#203f58
RGB Decimal Code32, 63, 88rgb(32, 63, 88)
CMYK64, 28, 0, 65/
HSL207°, 47%, 24%hsl(207°, 47%, 24%)
HSV207°, 64%, 35%/
CIE-LAB25, -3, -18/
XYZ 4, 5, 10/
YUV0.2219, 0.0606, -0.0846/
Decimal value2113368/
Web-Safe HEX333366#333366
Color Temperature (CT)32696 Kelvin (32696K)/
Estimate Wavelengtharound 486.50nm/

The Depth and Diversity of Regal Blue (Hex: #203f58): Exploring its Impact in Design and Culture

The hex color #203f58, also known as Regal Blue, resembles the calm depths of an ocean at dusk. Its rich and dark shade evokes a sense of mystery and tranquility. Similar to the regal blue color, a sapphire gemstone glistening under sunlight or a dense forest of tall spruce trees exudes elegance and sophistication. This hue can also be compared to the velvety petals of a rare midnight iris or the glossy feathers of a blue jay, capturing the essence of natures beauty.

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Tints and Shades of #203f58 HEX color (Regal Blue)

In color theory, tints and shades are essential for understanding the depth and luminosity of colors. A tint is achieved by adding white to a pure hue, lightening its appearance. Conversely, a shade results from blending black with a color, giving it a deeper tone. In the context of #203f58, this color stands at the center between its tints and shades. While the tints get progressively lighter moving towards white (#ffffff), the shades deepen towards black (#000000).

  • #ffffff
  • #C7CFD5
  • #909FAC
  • #586F82
  • #203f58
  • #182F42
  • #10202C
  • #081016
  • #000000

Tones of Regal Blue (#203f58 HEX color)

A tone is produced by adding gray to any pure hue. In the case of #203f58, #465968 is the less saturated color, while #203f58 is the most saturated one.

  • #465968
  • #3d5364
  • #334c60
  • #2a465c
  • #203f58
  • #333333
  • #262626
  • #1a1a1a
  • #0d0d0d

HTML Usage Examples

HTML using color code example

<p style="color: #203f58;">This is a css example</p>

HTML / CSS Color Name using W3C

W3C HTML / CSS Color Name doesn't exist for #203f58.

CSS color code example

p { color: #203f58; }

Text with hexadecimal color #203f58

This is a sample text with color #203f58.

Background Color with #203f58

This is a example with background color #203f58.

Border Color with #203f58

This is a example of a border with #203f58.

#203f58 Color Preview on White (#ffffff) Background

This is a example of text with color #203f58 on white background.

#203f58 Color Preview on Black (#000000) Background

This is a example of text with color #203f58 on black background.

CSS codes examples

.text {color:#203f58;}
.background {background-color:#203f58;}
.border {border:1px solid #203f58;}

Complementary Color


Analogous Colors


Split Complementary Colors


Triadic Colors


Tetradic Colors