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#EF100B

#ef100b ≈ Lust

  • red
  • Lightness: medium
  • Saturation: vivid
  • Warm
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#ef100b is a color from the red family, with medium lightness and vivid saturation. In the RGB model it is made of 93.73% red, 6.27% green and 4.31% blue; printed in CMYK it uses 0% cyan, 93.31% magenta, 95.4% yellow and 6.27% black. Its hue angle is 1.32°, with 91.2% saturation and 49.02% lightness in HSL. It is a warm color, often associated with energy, passion and urgency. Designers typically use it for food and restaurant brands, sales and promotions and call-to-action buttons. Black text on this color reaches a contrast ratio of 4.75:1 (WCAG AA). The closest named color is Lust (#e62020), ΔE 3.09.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#ff0000
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1875

Complementary

  1. #ef100b
  2. #0beaef

Split complementary

  1. #ef100b
  2. #0bef82
  3. #0b78ef

Analogous

  1. #ef0b78
  2. #ef100b
  3. #ef820b

Triadic

  1. #ef100b
  2. #0bef10
  3. #100bef

Tetradic

  1. #ef100b
  2. #eaef0b
  3. #0beaef
  4. #100bef

Square

  1. #ef100b
  2. #78ef0b
  3. #0beaef
  4. #820bef

Monochromatic

  1. #5d0604
  2. #a60b08
  3. #ef100b
  4. #f75350
  5. #fa9b99

Shades

#ef100b mixed progressively with black.

  1. #ef100b
  2. #d70e0a
  3. #bf0d09
  4. #a70b08
  5. #8f0a07
  6. #780806
  7. #600604
  8. #480503
  9. #300302
  10. #180201
  11. #000000

Tints

#ef100b mixed progressively with white.

  1. #ef100b
  2. #f12823
  3. #f2403c
  4. #f45854
  5. #f5706d
  6. #f78885
  7. #f99f9d
  8. #fab7b6
  9. #fccfce
  10. #fde7e7
  11. #ffffff

Tones

#ef100b mixed progressively with gray.

  1. #ef100b
  2. #e41b17
  3. #d92622
  4. #ce322e
  5. #c33d3a
  6. #b84846
  7. #ac5351
  8. #a15e5d
  9. #966a69
  10. #8b7574
  11. #808080

Readable text 4.42:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.75:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #787878 ≈ 0.003% of males
Achromatomaly #b45f5f ≈ 0.001% of males
Protanopia #675a00 ≈ 1.01% of males
Deuteranopia #998800 ≈ 1.27% of males
Tritanopia #ff0017 ≈ 0.0001% of males
Protanomaly #af4804 ≈ 1.08% of males
Deuteranomaly #c26c00 ≈ 4.63% of males
Tritanomaly #fe0013 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-ef100b {
  color: #ef100b;
}
Background
.bg-ef100b {
  background-color: #ef100b;
  color: #000000;
}
Border
.border-ef100b {
  border: 2px solid #ef100b;
}
CSS variables
:root {
  --color-primary: #ef100b;
  --color-primary-rgb: 239 16 11;
  --color-primary-hsl: 1 91% 49%;
}
Gradient
.gradient-ef100b {
  background: linear-gradient(135deg, #ef100b, #ef820b);
}
Colored shadow
.shadow-ef100b {
  box-shadow: 0 8px 24px rgb(239 16 11 / 0.35);
}

#e62020 Lust ΔE 3.09 #ff0000 Red ΔE 3.20 #ff0800 Candy Apple Red ΔE 3.38 #ff2400 Scarlet ΔE 4.67 #ff2800 Ferrari Red ΔE 5.00 #e34234 Cinnabar ΔE 5.40 #e34234 Vermilion ΔE 5.40 #10eff4 Inverted #787878 Grayscale 

Lust
#ef100b  rgb(239, 16, 11)  hsl(1, 91%, 49%)  Lust
#0beaef  rgb(11, 234, 239)  hsl(181, 91%, 49%)  Aqua
#0bef10  rgb(11, 239, 16)  hsl(121, 91%, 49%)  Lime
#100bef  rgb(16, 11, 239)  hsl(241, 91%, 49%)  Blue