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#FFEF45

#ffef45 ≈ Aureolin

  • yellow
  • Lightness: high
  • Saturation: strong
  • Warm
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#ffef45 is a color from the yellow family, with high lightness and strong saturation. In the RGB model it is made of 100% red, 93.73% green and 27.06% blue; printed in CMYK it uses 0% cyan, 6.27% magenta, 72.94% yellow and 0% black. Its hue angle is 54.84°, with 100% saturation and 63.53% 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 17.68:1 (WCAG AAA). The closest named color is Aureolin (#fdee00), ΔE 2.59.

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 luminance0.8342

Complementary

  1. #ffef45
  2. #4555ff

Split complementary

  1. #ffef45
  2. #45b2ff
  3. #9245ff

Analogous

  1. #ff9245
  2. #ffef45
  3. #b2ff45

Triadic

  1. #ffef45
  2. #45ffef
  3. #ef45ff

Tetradic

  1. #ffef45
  2. #55ff45
  3. #4555ff
  4. #ef45ff

Square

  1. #ffef45
  2. #45ff92
  3. #4555ff
  4. #ff45b2

Monochromatic

  1. #ab9c00
  2. #f8e200
  3. #ffef45
  4. #fff692
  5. #fffcde

Shades

#ffef45 mixed progressively with black.

  1. #ffef45
  2. #e6d73e
  3. #ccbf37
  4. #b3a730
  5. #998f29
  6. #807823
  7. #66601c
  8. #4d4815
  9. #33300e
  10. #1a1807
  11. #000000

Tints

#ffef45 mixed progressively with white.

  1. #ffef45
  2. #fff158
  3. #fff26a
  4. #fff47d
  5. #fff58f
  6. #fff7a2
  7. #fff9b5
  8. #fffac7
  9. #fffcda
  10. #fffdec
  11. #ffffff

Tones

#ffef45 mixed progressively with gray.

  1. #ffef45
  2. #f2e44b
  3. #e6d951
  4. #d9ce57
  5. #ccc35d
  6. #c0b863
  7. #b3ac68
  8. #a6a16e
  9. #999674
  10. #8d8b7a
  11. #808080

Readable text 1.19:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 17.68:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #ebebeb ≈ 0.003% of males
Achromatomaly #f4edc0 ≈ 0.001% of males
Protanopia #ffe723 ≈ 1.01% of males
Deuteranopia #ffef51 ≈ 1.27% of males
Tritanopia #ffdece ≈ 0.0001% of males
Protanomaly #ffea34 ≈ 1.08% of males
Deuteranomaly #ffef4d ≈ 4.63% of males
Tritanomaly #ffe5a9 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-ffef45 {
  color: #ffef45;
}
Background
.bg-ffef45 {
  background-color: #ffef45;
  color: #000000;
}
Border
.border-ffef45 {
  border: 2px solid #ffef45;
}
CSS variables
:root {
  --color-primary: #ffef45;
  --color-primary-rgb: 255 239 69;
  --color-primary-hsl: 55 100% 64%;
}
Gradient
.gradient-ffef45 {
  background: linear-gradient(135deg, #ffef45, #b2ff45);
}
Colored shadow
.shadow-ffef45 {
  box-shadow: 0 8px 24px rgb(255 239 69 / 0.35);
}

#fdee00 Aureolin ΔE 2.59 #ffef00 Canary Yellow ΔE 2.64 #f0e130 Dandelion ΔE 3.09 #fcf75e Icterine ΔE 3.36 #fff600 Cadmium Yellow ΔE 3.37 #eee600 Titanium Yellow ΔE 3.45 #fff700 Lemon ΔE 3.54 #0010ba Inverted #ebebeb Grayscale 

Aureolin
#ffef45  rgb(255, 239, 69)  hsl(55, 100%, 64%)  Aureolin
#4555ff  rgb(69, 85, 255)  hsl(235, 100%, 64%)  Majorelle Blue
#45ffef  rgb(69, 255, 239)  hsl(175, 100%, 64%)  Turquoise Blue
#ef45ff  rgb(239, 69, 255)  hsl(295, 100%, 64%)  Fuchsia