ColorTool
Log in
#666EE7

#666ee7 ≈ Medium Slate Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
Check contrast Explore in graph Random color

#666ee7 is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 40% red, 43.14% green and 90.59% blue; printed in CMYK it uses 55.84% cyan, 52.38% magenta, 0% yellow and 9.41% black. Its hue angle is 236.28°, with 72.88% saturation and 65.29% 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 brand accents. Black text on this color reaches a contrast ratio of 4.95:1 (WCAG AA). The closest named color is Medium Slate Blue (#7b68ee), ΔE 4.48.

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 luminance0.1975

Complementary

  1. #666ee7
  2. #e7df66

Split complementary

  1. #666ee7
  2. #e79e66
  3. #aee766

Analogous

  1. #66aee7
  2. #666ee7
  3. #9e66e7

Triadic

  1. #666ee7
  2. #e7666e
  3. #6ee766

Tetradic

  1. #666ee7
  2. #df66e7
  3. #e7df66
  4. #6ee766

Square

  1. #666ee7
  2. #e766ae
  3. #e7df66
  4. #66e79e

Monochromatic

  1. #18219c
  2. #242fdd
  3. #666ee7
  4. #a8adf1
  5. #eaebfc

Shades

#666ee7 mixed progressively with black.

  1. #666ee7
  2. #5c63d0
  3. #5258b9
  4. #474da2
  5. #3d428b
  6. #333774
  7. #292c5c
  8. #1f2145
  9. #14162e
  10. #0a0b17
  11. #000000

Tints

#666ee7 mixed progressively with white.

  1. #666ee7
  2. #757de9
  3. #858bec
  4. #949aee
  5. #a3a8f1
  6. #b3b7f3
  7. #c2c5f5
  8. #d1d4f8
  9. #e0e2fa
  10. #f0f1fd
  11. #ffffff

Tones

#666ee7 mixed progressively with gray.

  1. #666ee7
  2. #6970dd
  3. #6b72d2
  4. #6e73c8
  5. #7075be
  6. #7377b4
  7. #7679a9
  8. #787b9f
  9. #7b7c95
  10. #7d7e8a
  11. #808080

Readable text 4.24:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.95:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7b7b7b ≈ 0.003% of males
Achromatomaly #7376b1 ≈ 0.001% of males
Protanopia #2780eb ≈ 1.01% of males
Deuteranopia #0376e4 ≈ 1.27% of males
Tritanopia #1d8aa0 ≈ 0.0001% of males
Protanomaly #4879ea ≈ 1.08% of males
Deuteranomaly #4173e5 ≈ 4.63% of males
Tritanomaly #457fc1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-666ee7 {
  color: #666ee7;
}
Background
.bg-666ee7 {
  background-color: #666ee7;
  color: #000000;
}
Border
.border-666ee7 {
  border: 2px solid #666ee7;
}
CSS variables
:root {
  --color-primary: #666ee7;
  --color-primary-rgb: 102 110 231;
  --color-primary-hsl: 236 73% 65%;
}
Gradient
.gradient-666ee7 {
  background: linear-gradient(135deg, #666ee7, #9e66e7);
}
Colored shadow
.shadow-666ee7 {
  box-shadow: 0 8px 24px rgb(102 110 231 / 0.35);
}

#7b68ee Medium Slate Blue ΔE 4.48 #4166f5 Ultramarine Blue ΔE 4.88 #4169e1 Royal Blue ΔE 5.53 #6a5acd Slate Blue ΔE 7.74 #0070ff Brandeis Blue ΔE 7.91 #9370db Medium Purple ΔE 9.10 #6082b6 Glaucous ΔE 9.28 #999118 Inverted #7b7b7b Grayscale 

Medium Slate Blue
#666ee7  rgb(102, 110, 231)  hsl(236, 73%, 65%)  Medium Slate Blue
#e7df66  rgb(231, 223, 102)  hsl(56, 73%, 65%)  Straw
#e7666e  rgb(231, 102, 110)  hsl(356, 73%, 65%)  Neon Fuchsia
#6ee766  rgb(110, 231, 102)  hsl(116, 73%, 65%)  Pastel Green