#181d21 Color Information

In a RGB color space, hex #181d21 is composed of 9.4% red, 11.4% green and 12.9% blue. Whereas in a CMYK color space, it is composed of 27.3% cyan, 12.1% magenta, 0% yellow and 87.1% black. It has a hue angle of 206.7 degrees, a saturation of 15.8% and a lightness of 11.2%. #181d21 color hex could be obtained by blending #303a42 with #000000. Closest websafe color is: #003333.

    • R 9
    • G 11
    • B 13
    RGB color chart
    • C 27
    • M 12
    • Y 0
    • K 87
    CMYK color chart

#181d21 color description : Very dark (mostly black) blue.

#181d21 Color Conversion

The hexadecimal color #181d21 has RGB values of R:24, G:29, B:33 and CMYK values of C:0.27, M:0.12, Y:0, K:0.87. Its decimal value is 1580321.

Hex triplet 181d21 #181d21
RGB Decimal 24, 29, 33 rgb(24,29,33)
RGB Percent 9.4, 11.4, 12.9 rgb(9.4%,11.4%,12.9%)
CMYK 27, 12, 0, 87
HSL 206.7°, 15.8, 11.2 hsl(206.7,15.8%,11.2%)
HSV (or HSB) 206.7°, 27.3, 12.9
Web Safe 003333 #003333
CIE-LAB 10.429, -1.147, -3.517
XYZ 1.091, 1.183, 1.61
xyY 0.281, 0.305, 1.183
CIE-LCH 10.429, 3.7, 251.939
CIE-LUV 10.429, -1.827, -2.501
Hunter-Lab 10.875, -1.133, -1.163
Binary 00011000, 00011101, 00100001

Color Schemes with #181d21

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

Alternatives to #181d21

Below, you can see some colors close to #181d21. Having a set of related colors can be useful if you need an inspirational alternative to your original color choice.

Similar Colors

#181d21 Preview

Text with hexadecimal color #181d21

This text has a font color of #181d21.

<span style="color:#181d21;">Text here</span>
#181d21 background color

This paragraph has a background color of #181d21.

<p style="background-color:#181d21;">Content here</p>
#181d21 border color

This element has a border color of #181d21.

<div style="border:1px solid #181d21;">Content here</div>
CSS codes
.text {color:#181d21;}
.background {background-color:#181d21;}
.border {border:1px solid #181d21;}

Shades and Tints of #181d21

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 #181d21

A tone is produced by adding gray to any pure hue. In this case, #1c1d1d is the less saturated color, while #021f37 is the most saturated one.

Tone Color Variation

Color Blindness Simulator

Below, you can see how #181d21 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.

  • #1c1c1c Achromatopsia 0.005% of the population
  • #1b1c1d Atypical Achromatopsia 0.001% of the population
  • #27272c Protanopia 1% of men
  • #29272d Deuteranopia 1% of men
  • #23282b Tritanopia 0.001% of the population
  • #212328 Protanomaly 1% of men, 0.01% of women
  • #232328 Deuteranomaly 6% of men, 0.4% of women
  • #1f2427 Tritanomaly 0.01% of the population