#181c21 Color Information

In a RGB color space, hex #181c21 is composed of 9.4% red, 11% green and 12.9% blue. Whereas in a CMYK color space, it is composed of 27.3% cyan, 15.2% magenta, 0% yellow and 87.1% black. It has a hue angle of 213.3 degrees, a saturation of 15.8% and a lightness of 11.2%. #181c21 color hex could be obtained by blending #303842 with #000000. Closest websafe color is: #003333.

    • R 9
    • G 11
    • B 13
    RGB color chart
    • C 27
    • M 15
    • Y 0
    • K 87
    CMYK color chart

#181c21 color description : Very dark (mostly black) blue.

#181c21 Color Conversion

The hexadecimal color #181c21 has RGB values of R:24, G:28, B:33 and CMYK values of C:0.27, M:0.15, Y:0, K:0.87. Its decimal value is 1580065.

Hex triplet 181c21 #181c21
RGB Decimal 24, 28, 33 rgb(24,28,33)
RGB Percent 9.4, 11, 12.9 rgb(9.4%,11%,12.9%)
CMYK 27, 15, 0, 87
HSL 213.3°, 15.8, 11.2 hsl(213.3,15.8%,11.2%)
HSV (or HSB) 213.3°, 27.3, 12.9
Web Safe 003333 #003333
CIE-LAB 10.065, -0.415, -4.063
XYZ 1.066, 1.134, 1.602
xyY 0.28, 0.298, 1.134
CIE-LCH 10.065, 4.085, 264.174
CIE-LUV 10.065, -1.501, -2.91
Hunter-Lab 10.651, -0.768, -1.459
Binary 00011000, 00011100, 00100001

Color Schemes with #181c21

Complementary Color
Analogous Color
Split Complementary Color
Triadic Color
Tetradic Color
Monochromatic Color

Alternatives to #181c21

Below, you can see some colors close to #181c21. Having a set of related colors can be useful if you need an inspirational alternative to your original color choice.

Similar Colors

#181c21 Preview

Text with hexadecimal color #181c21

This text has a font color of #181c21.

<span style="color:#181c21;">Text here</span>
#181c21 background color

This paragraph has a background color of #181c21.

<p style="background-color:#181c21;">Content here</p>
#181c21 border color

This element has a border color of #181c21.

<div style="border:1px solid #181c21;">Content here</div>
CSS codes
.text {color:#181c21;}
.background {background-color:#181c21;}
.border {border:1px solid #181c21;}

Shades and Tints of #181c21

A shade is achieved by adding black to any pure hue, while a tint is created by mixing white to any pure color. In this example, #07090a is the darkest color, while #fefefe is the lightest one.

Shade Color Variation
Tint Color Variation

Tones of #181c21

A tone is produced by adding gray to any pure hue. In this case, #1c1c1d is the less saturated color, while #021a37 is the most saturated one.

Tone Color Variation

Color Blindness Simulator

Below, you can see how #181c21 is perceived by people affected by a color vision deficiency. This can be useful if you need to ensure your color combinations are accessible to color-blind users.

  • #1b1b1b Achromatopsia 0.005% of the population
  • #1a1b1c Atypical Achromatopsia 0.001% of the population
  • #26272c Protanopia 1% of men
  • #28262d Deuteranopia 1% of men
  • #23282a Tritanopia 0.001% of the population
  • #212328 Protanomaly 1% of men, 0.01% of women
  • #222228 Deuteranomaly 6% of men, 0.4% of women
  • #1f2327 Tritanomaly 0.01% of the population