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#EF042F

#ef042f ≈ Tractor Red

  • red
  • Lightness: medium
  • Saturation: vivid
  • Warm
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#ef042f is a color from the red family, with medium lightness and vivid saturation. In the RGB model it is made of 93.73% red, 1.57% green and 18.43% blue; printed in CMYK it uses 0% cyan, 98.33% magenta, 80.33% yellow and 6.27% black. Its hue angle is 349.02°, with 96.71% saturation and 47.65% 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 4.73:1 (WCAG AA). The closest named color is Tractor Red (#fd0e35), ΔE 3.21.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#ff0033
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1864

Complementary

  1. #ef042f
  2. #04efc4

Split complementary

  1. #ef042f
  2. #04ef4e
  3. #04a5ef

Analogous

  1. #ef04a5
  2. #ef042f
  3. #ef4e04

Triadic

  1. #ef042f
  2. #2fef04
  3. #042fef

Tetradic

  1. #ef042f
  2. #efc404
  3. #04efc4
  4. #042fef

Square

  1. #ef042f
  2. #a5ef04
  3. #04efc4
  4. #4e04ef

Monochromatic

  1. #590111
  2. #a40320
  3. #ef042f
  4. #fc4465
  5. #fd8fa3

Shades

#ef042f mixed progressively with black.

  1. #ef042f
  2. #d7042a
  3. #bf0326
  4. #a70321
  5. #8f021c
  6. #780218
  7. #600213
  8. #48010e
  9. #300109
  10. #180005
  11. #000000

Tints

#ef042f mixed progressively with white.

  1. #ef042f
  2. #f11d44
  3. #f23659
  4. #f44f6d
  5. #f56882
  6. #f78297
  7. #f99bac
  8. #fab4c1
  9. #fccdd5
  10. #fde6ea
  11. #ffffff

Tones

#ef042f mixed progressively with gray.

  1. #ef042f
  2. #e41037
  3. #d91d3f
  4. #ce2947
  5. #c3364f
  6. #b84258
  7. #ac4e60
  8. #a15b68
  9. #966770
  10. #8b7478
  11. #808080

Readable text 4.44:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.73:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #787878 ≈ 0.003% of males
Achromatomaly #b45e62 ≈ 0.001% of males
Protanopia #645a2d ≈ 1.01% of males
Deuteranopia #978724 ≈ 1.27% of males
Tritanopia #ff001f ≈ 0.0001% of males
Protanomaly #ae462e ≈ 1.08% of males
Deuteranomaly #c16b29 ≈ 4.63% of males
Tritanomaly #fe0026 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-ef042f {
  color: #ef042f;
}
Background
.bg-ef042f {
  background-color: #ef042f;
  color: #000000;
}
Border
.border-ef042f {
  border: 2px solid #ef042f;
}
CSS variables
:root {
  --color-primary: #ef042f;
  --color-primary-rgb: 239 4 47;
  --color-primary-hsl: 349 97% 48%;
}
Gradient
.gradient-ef042f {
  background: linear-gradient(135deg, #ef042f, #ef4e04);
}
Colored shadow
.shadow-ef042f {
  box-shadow: 0 8px 24px rgb(239 4 47 / 0.35);
}

#fd0e35 Tractor Red ΔE 3.21 #e30022 Cadmium Red ΔE 3.47 #e62020 Lust ΔE 4.27 #e34234 Cinnabar ΔE 5.24 #e34234 Vermilion ΔE 5.24 #dc143c Crimson ΔE 5.54 #cc3333 Persian Red ΔE 5.90 #10fbd0 Inverted #787878 Grayscale 

Tractor Red
#ef042f  rgb(239, 4, 47)  hsl(349, 97%, 48%)  Tractor Red
#04efc4  rgb(4, 239, 196)  hsl(169, 97%, 48%)  Aquamarine
#2fef04  rgb(47, 239, 4)  hsl(109, 97%, 48%)  Lime
#042fef  rgb(4, 47, 239)  hsl(229, 97%, 48%)  Blue