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#EFB31B

#efb31b ≈ Amber

  • yellow
  • Lightness: medium
  • Saturation: vivid
  • Warm
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#efb31b is a color from the yellow family, with medium lightness and vivid saturation. In the RGB model it is made of 93.73% red, 70.2% green and 10.59% blue; printed in CMYK it uses 0% cyan, 25.1% magenta, 88.7% yellow and 6.27% black. Its hue angle is 43.02°, with 86.89% saturation and 52.16% lightness in HSL. It is a warm color, often associated with optimism, attention and joy. Designers typically use it for highlights and warnings, children's products and call-to-action buttons. Black text on this color reaches a contrast ratio of 11.13:1 (WCAG AAA). The closest named color is Amber (#ffbf00), ΔE 3.62.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#ffcc33
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.5067

Complementary

  1. #efb31b
  2. #1b57ef

Split complementary

  1. #efb31b
  2. #1bc1ef
  3. #491bef

Analogous

  1. #ef491b
  2. #efb31b
  3. #c1ef1b

Triadic

  1. #efb31b
  2. #1befb3
  3. #b31bef

Tetradic

  1. #efb31b
  2. #57ef1b
  3. #1b57ef
  4. #b31bef

Square

  1. #efb31b
  2. #1bef49
  3. #1b57ef
  4. #ef1bc1

Monochromatic

  1. #6a4e07
  2. #b1820c
  3. #efb31b
  4. #f4cb62
  5. #f9e3aa

Shades

#efb31b mixed progressively with black.

  1. #efb31b
  2. #d7a118
  3. #bf8f16
  4. #a77d13
  5. #8f6b10
  6. #785a0e
  7. #60480b
  8. #483608
  9. #302405
  10. #181203
  11. #000000

Tints

#efb31b mixed progressively with white.

  1. #efb31b
  2. #f1bb32
  3. #f2c249
  4. #f4ca5f
  5. #f5d176
  6. #f7d98d
  7. #f9e1a4
  8. #fae8bb
  9. #fcf0d1
  10. #fdf7e8
  11. #ffffff

Tones

#efb31b mixed progressively with gray.

  1. #efb31b
  2. #e4ae25
  3. #d9a92f
  4. #cea439
  5. #c39f43
  6. #b89a4e
  7. #ac9458
  8. #a18f62
  9. #968a6c
  10. #8b8576
  11. #808080

Readable text 1.89:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 11.13:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #bdbdbd ≈ 0.003% of males
Achromatomaly #d3b997 ≈ 0.001% of males
Protanopia #ccb400 ≈ 1.01% of males
Deuteranopia #dac326 ≈ 1.27% of males
Tritanopia #ffa099 ≈ 0.0001% of males
Protanomaly #dbb300 ≈ 1.08% of males
Deuteranomaly #e3bd22 ≈ 4.63% of males
Tritanomaly #fca87a ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-efb31b {
  color: #efb31b;
}
Background
.bg-efb31b {
  background-color: #efb31b;
  color: #000000;
}
Border
.border-efb31b {
  border: 2px solid #efb31b;
}
CSS variables
:root {
  --color-primary: #efb31b;
  --color-primary-rgb: 239 179 27;
  --color-primary-hsl: 43 87% 52%;
}
Gradient
.gradient-efb31b {
  background: linear-gradient(135deg, #efb31b, #c1ef1b);
}
Colored shadow
.shadow-efb31b {
  box-shadow: 0 8px 24px rgb(239 179 27 / 0.35);
}

#ffbf00 Amber ΔE 3.62 #e5b73b Meat Brown ΔE 3.66 #fcc200 Golden Poppy ΔE 4.32 #daa520 Goldenrod ΔE 4.51 #ffc40c Mikado Yellow ΔE 4.66 #f4c430 Saffron ΔE 4.96 #eaa221 Marigold ΔE 5.92 #104ce4 Inverted #bdbdbd Grayscale 

Amber
#efb31b  rgb(239, 179, 27)  hsl(43, 87%, 52%)  Amber
#1b57ef  rgb(27, 87, 239)  hsl(223, 87%, 52%)  Ultramarine Blue
#1befb3  rgb(27, 239, 179)  hsl(163, 87%, 52%)  Medium Spring Green
#b31bef  rgb(179, 27, 239)  hsl(283, 87%, 52%)  Electric Purple