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#FEF028

#fef028 ≈ Aureolin

  • yellow
  • Lightness: medium
  • Saturation: vivid
  • Warm
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#fef028 is a color from the yellow family, with medium lightness and vivid saturation. In the RGB model it is made of 99.61% red, 94.12% green and 15.69% blue; printed in CMYK it uses 0% cyan, 5.51% magenta, 84.25% yellow and 0.39% black. Its hue angle is 56.07°, with 99.07% saturation and 57.65% 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 17.71:1 (WCAG AAA). The closest named color is Aureolin (#fdee00), ΔE 1.03.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#ffff33
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.8354

Complementary

  1. #fef028
  2. #2836fe

Split complementary

  1. #fef028
  2. #28a1fe
  3. #8528fe

Analogous

  1. #fe8528
  2. #fef028
  3. #a1fe28

Triadic

  1. #fef028
  2. #28fef0
  3. #f028fe

Tetradic

  1. #fef028
  2. #36fe28
  3. #2836fe
  4. #f028fe

Square

  1. #fef028
  2. #28fe85
  3. #2836fe
  4. #fe28a1

Monochromatic

  1. #8c8301
  2. #d9ca01
  3. #fef028
  4. #fef574
  5. #fffbc0

Shades

#fef028 mixed progressively with black.

  1. #fef028
  2. #e5d824
  3. #cbc020
  4. #b2a81c
  5. #989018
  6. #7f7814
  7. #666010
  8. #4c480c
  9. #333008
  10. #191804
  11. #000000

Tints

#fef028 mixed progressively with white.

  1. #fef028
  2. #fef23e
  3. #fef353
  4. #fef569
  5. #fef67e
  6. #fff894
  7. #fff9a9
  8. #fffbbf
  9. #fffcd4
  10. #fffeea
  11. #ffffff

Tones

#fef028 mixed progressively with gray.

  1. #fef028
  2. #f1e531
  3. #e5da3a
  4. #d8ce42
  5. #ccc34b
  6. #bfb854
  7. #b2ad5d
  8. #a6a266
  9. #99966e
  10. #8d8b77
  11. #808080

Readable text 1.19:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 17.71:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #ececec ≈ 0.003% of males
Achromatomaly #f3edbd ≈ 0.001% of males
Protanopia #ffe700 ≈ 1.01% of males
Deuteranopia #ffef3d ≈ 1.27% of males
Tritanopia #ffdfcd ≈ 0.0001% of males
Protanomaly #ffeb00 ≈ 1.08% of males
Deuteranomaly #fff036 ≈ 4.63% of males
Tritanomaly #ffe6a5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-fef028 {
  color: #fef028;
}
Background
.bg-fef028 {
  background-color: #fef028;
  color: #000000;
}
Border
.border-fef028 {
  border: 2px solid #fef028;
}
CSS variables
:root {
  --color-primary: #fef028;
  --color-primary-rgb: 254 240 40;
  --color-primary-hsl: 56 99% 58%;
}
Gradient
.gradient-fef028 {
  background: linear-gradient(135deg, #fef028, #a1fe28);
}
Colored shadow
.shadow-fef028 {
  box-shadow: 0 8px 24px rgb(254 240 40 / 0.35);
}

#fdee00 Aureolin ΔE 1.03 #ffef00 Canary Yellow ΔE 1.10 #fff600 Cadmium Yellow ΔE 1.86 #fff700 Lemon ΔE 2.09 #eee600 Titanium Yellow ΔE 2.69 #f0e130 Dandelion ΔE 3.43 #ffff31 Daffodil ΔE 3.95 #010fd7 Inverted #ececec Grayscale 

Aureolin
#fef028  rgb(254, 240, 40)  hsl(56, 99%, 58%)  Aureolin
#2836fe  rgb(40, 54, 254)  hsl(236, 99%, 58%)  Han Purple
#28fef0  rgb(40, 254, 240)  hsl(176, 99%, 58%)  Turquoise Blue
#f028fe  rgb(240, 40, 254)  hsl(296, 99%, 58%)  Fuchsia