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#666DFD

#666dfd ≈ Medium Slate Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
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#666dfd is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 40% red, 42.75% green and 99.22% blue; printed in CMYK it uses 59.68% cyan, 56.92% magenta, 0% yellow and 0.78% black. Its hue angle is 237.22°, with 97.42% saturation and 69.61% 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 5.17:1 (WCAG AA). The closest named color is Medium Slate Blue (#7b68ee), ΔE 4.26.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6666ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2085

Complementary

  1. #666dfd
  2. #fdf666

Split complementary

  1. #666dfd
  2. #fdab66
  3. #b9fd66

Analogous

  1. #66b9fd
  2. #666dfd
  3. #ab66fd

Triadic

  1. #666dfd
  2. #fd666d
  3. #6dfd66

Tetradic

  1. #666dfd
  2. #f666fd
  3. #fdf666
  4. #6dfd66

Square

  1. #666dfd
  2. #fd66b9
  3. #fdf666
  4. #66fdab

Monochromatic

  1. #030cc7
  2. #1a25fc
  3. #666dfd
  4. #b2b5fe
  5. #ebecff

Shades

#666dfd mixed progressively with black.

  1. #666dfd
  2. #5c62e4
  3. #5257ca
  4. #474cb1
  5. #3d4198
  6. #33377f
  7. #292c65
  8. #1f214c
  9. #141633
  10. #0a0b19
  11. #000000

Tints

#666dfd mixed progressively with white.

  1. #666dfd
  2. #757cfd
  3. #858afd
  4. #9499fe
  5. #a3a7fe
  6. #b3b6fe
  7. #c2c5fe
  8. #d1d3fe
  9. #e0e2ff
  10. #f0f0ff
  11. #ffffff

Tones

#666dfd mixed progressively with gray.

  1. #666dfd
  2. #696ff1
  3. #6b71e4
  4. #6e73d8
  5. #7075cb
  6. #7377bf
  7. #7678b2
  8. #787aa6
  9. #7b7c99
  10. #7d7e8d
  11. #808080

Readable text 4.06:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.17:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7e7e7e ≈ 0.003% of males
Achromatomaly #7578bf ≈ 0.001% of males
Protanopia #0085ff ≈ 1.01% of males
Deuteranopia #0078fa ≈ 1.27% of males
Tritanopia #0090ab ≈ 0.0001% of males
Protanomaly #397cff ≈ 1.08% of males
Deuteranomaly #2e74fb ≈ 4.63% of males
Tritanomaly #3983d1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-666dfd {
  color: #666dfd;
}
Background
.bg-666dfd {
  background-color: #666dfd;
  color: #000000;
}
Border
.border-666dfd {
  border: 2px solid #666dfd;
}
CSS variables
:root {
  --color-primary: #666dfd;
  --color-primary-rgb: 102 109 253;
  --color-primary-hsl: 237 97% 70%;
}
Gradient
.gradient-666dfd {
  background: linear-gradient(135deg, #666dfd, #ab66fd);
}
Colored shadow
.shadow-666dfd {
  box-shadow: 0 8px 24px rgb(102 109 253 / 0.35);
}

#7b68ee Medium Slate Blue ΔE 4.26 #4166f5 Ultramarine Blue ΔE 5.19 #4169e1 Royal Blue ΔE 6.93 #0070ff Brandeis Blue ΔE 8.00 #6a5acd Slate Blue ΔE 9.25 #9370db Medium Purple ΔE 9.59 #6050dc Majorelle Blue ΔE 10.22 #999202 Inverted #7e7e7e Grayscale 

Medium Slate Blue
#666dfd  rgb(102, 109, 253)  hsl(237, 97%, 70%)  Medium Slate Blue
#fdf666  rgb(253, 246, 102)  hsl(57, 97%, 70%)  Icterine
#fd666d  rgb(253, 102, 109)  hsl(357, 97%, 70%)  Pastel Red
#6dfd66  rgb(109, 253, 102)  hsl(117, 97%, 70%)  Neon Green