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#6581EF

#6581ef ≈ Glaucous

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
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#6581ef is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 39.61% red, 50.59% green and 93.73% blue; printed in CMYK it uses 57.74% cyan, 46.03% magenta, 0% yellow and 6.27% black. Its hue angle is 227.83°, with 81.18% saturation and 66.67% lightness in HSL. It is a cool color, often associated with trust, stability and focus. Designers typically use it for technology products, finance and banking and call-to-action buttons. Black text on this color reaches a contrast ratio of 5.94:1 (WCAG AA). The closest named color is Glaucous (#6082b6), ΔE 6.69.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6699ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.247

Complementary

  1. #6581ef
  2. #efd365

Split complementary

  1. #6581ef
  2. #ef8e65
  3. #c6ef65

Analogous

  1. #65c6ef
  2. #6581ef
  3. #8e65ef

Triadic

  1. #6581ef
  2. #ef6581
  3. #81ef65

Tetradic

  1. #6581ef
  2. #d365ef
  3. #efd365
  4. #81ef65

Square

  1. #6581ef
  2. #ef65c6
  3. #efd365
  4. #65ef8e

Monochromatic

  1. #1230a9
  2. #2048e8
  3. #6581ef
  4. #aabaf6
  5. #edf0fd

Shades

#6581ef mixed progressively with black.

  1. #6581ef
  2. #5b74d7
  3. #5167bf
  4. #475aa7
  5. #3d4d8f
  6. #334178
  7. #283460
  8. #1e2748
  9. #141a30
  10. #0a0d18
  11. #000000

Tints

#6581ef mixed progressively with white.

  1. #6581ef
  2. #748ef1
  3. #849af2
  4. #93a7f4
  5. #a3b3f5
  6. #b2c0f7
  7. #c1cdf9
  8. #d1d9fa
  9. #e0e6fc
  10. #f0f2fd
  11. #ffffff

Tones

#6581ef mixed progressively with gray.

  1. #6581ef
  2. #6881e4
  3. #6a81d9
  4. #6d81ce
  5. #7081c3
  6. #7381b8
  7. #7580ac
  8. #7880a1
  9. #7b8096
  10. #7d808b
  11. #808080

Readable text 3.54:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.94:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #888888 ≈ 0.003% of males
Achromatomaly #7c85ba ≈ 0.001% of males
Protanopia #4d8ff3 ≈ 1.01% of males
Deuteranopia #3882ed ≈ 1.27% of males
Tritanopia #009aac ≈ 0.0001% of males
Protanomaly #5889f1 ≈ 1.08% of males
Deuteranomaly #4e82ee ≈ 4.63% of males
Tritanomaly #3d90cb ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-6581ef {
  color: #6581ef;
}
Background
.bg-6581ef {
  background-color: #6581ef;
  color: #000000;
}
Border
.border-6581ef {
  border: 2px solid #6581ef;
}
CSS variables
:root {
  --color-primary: #6581ef;
  --color-primary-rgb: 101 129 239;
  --color-primary-hsl: 228 81% 67%;
}
Gradient
.gradient-6581ef {
  background: linear-gradient(135deg, #6581ef, #8e65ef);
}
Colored shadow
.shadow-6581ef {
  box-shadow: 0 8px 24px rgb(101 129 239 / 0.35);
}

#6082b6 Glaucous ΔE 6.69 #6495ed Cornflower Blue ΔE 6.91 #5b92e5 United Nations Blue ΔE 7.04 #0070ff Brandeis Blue ΔE 7.87 #417dc1 Tufts Blue ΔE 8.90 #4169e1 Royal Blue ΔE 8.94 #4166f5 Ultramarine Blue ΔE 9.04 #9a7e10 Inverted #888888 Grayscale 

Glaucous
#6581ef  rgb(101, 129, 239)  hsl(228, 81%, 67%)  Glaucous
#efd365  rgb(239, 211, 101)  hsl(48, 81%, 67%)  Naples Yellow
#ef6581  rgb(239, 101, 129)  hsl(348, 81%, 67%)  Blush
#81ef65  rgb(129, 239, 101)  hsl(108, 81%, 67%)  Pastel Green