#ef0000 Color Information

In a RGB color space, hex #ef0000 is composed of 93.7% red, 0% green and 0% blue. Whereas in a CMYK color space, it is composed of 0% cyan, 100% magenta, 100% yellow and 6.3% black. It has a hue angle of 0 degrees, a saturation of 100% and a lightness of 46.9%. #ef0000 color hex could be obtained by blending #ff0000 with #df0000. Closest websafe color is: #ff0000.

    • R 94
    • G 0
    • B 0
    RGB color chart
    • C 0
    • M 100
    • Y 100
    • K 6
    CMYK color chart

#ef0000 color description : Pure (or mostly pure) red.

#ef0000 Color Conversion

The hexadecimal color #ef0000 has RGB values of R:239, G:0, B:0 and CMYK values of C:0, M:1, Y:1, K:0.06. Its decimal value is 15663104.

Hex triplet ef0000 #ef0000
RGB Decimal 239, 0, 0 rgb(239,0,0)
RGB Percent 93.7, 0, 0 rgb(93.7%,0%,0%)
CMYK 0, 100, 100, 6
HSL 0°, 100, 46.9 hsl(0,100%,46.9%)
HSV (or HSB) 0°, 100, 93.7
Web Safe ff0000 #ff0000
CIE-LAB 49.925, 76.257, 63.985
XYZ 35.599, 18.356, 1.669
xyY 0.64, 0.33, 18.356
CIE-LCH 49.925, 99.544, 39.999
CIE-LUV 49.925, 164.114, 35.405
Hunter-Lab 42.843, 73.34, 27.681
Binary 11101111, 00000000, 00000000

Color Schemes with #ef0000

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

Alternatives to #ef0000

Below, you can see some colors close to #ef0000. Having a set of related colors can be useful if you need an inspirational alternative to your original color choice.

Similar Colors

#ef0000 Preview

Text with hexadecimal color #ef0000

This text has a font color of #ef0000.

<span style="color:#ef0000;">Text here</span>
#ef0000 background color

This paragraph has a background color of #ef0000.

<p style="background-color:#ef0000;">Content here</p>
#ef0000 border color

This element has a border color of #ef0000.

<div style="border:1px solid #ef0000;">Content here</div>
CSS codes
.text {color:#ef0000;}
.background {background-color:#ef0000;}
.border {border:1px solid #ef0000;}

Shades and Tints of #ef0000

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, #040000 is the darkest color, while #ffefef is the lightest one.

Shade Color Variation
Tint Color Variation

Tones of #ef0000

A tone is produced by adding gray to any pure hue. In this case, #816e6e is the less saturated color, while #ef0000 is the most saturated one.

Tone Color Variation

Color Blindness Simulator

Below, you can see how #ef0000 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.

  • #474747 Achromatopsia 0.005% of the population
  • #693939 Atypical Achromatopsia 0.001% of the population
  • #8c7e21 Protanopia 1% of men
  • #9d7800 Deuteranopia 1% of men
  • #ee1a00 Tritanopia 0.001% of the population
  • #b05015 Protanomaly 1% of men, 0.01% of women
  • #ba4c00 Deuteranomaly 6% of men, 0.4% of women
  • #ee1000 Tritanomaly 0.01% of the population