ColorTool
Log in
#6166EA

#6166ea ≈ Ultramarine Blue

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

#6166ea is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 38.04% red, 40% green and 91.76% blue; printed in CMYK it uses 58.55% cyan, 56.41% magenta, 0% yellow and 8.24% black. Its hue angle is 237.81°, with 76.54% saturation and 64.9% 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 4.6:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 3.88.

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 luminance0.1798

Complementary

  1. #6166ea
  2. #eae561

Split complementary

  1. #6166ea
  2. #eaa061
  3. #aaea61

Analogous

  1. #61aaea
  2. #6166ea
  3. #a061ea

Triadic

  1. #6166ea
  2. #ea6166
  3. #66ea61

Tetradic

  1. #6166ea
  2. #e561ea
  3. #eae561
  4. #66ea61

Square

  1. #6166ea
  2. #ea61aa
  3. #eae561
  4. #61eaa0

Monochromatic

  1. #151a9d
  2. #1e25e1
  3. #6166ea
  4. #a5a7f3
  5. #e8e9fc

Shades

#6166ea mixed progressively with black.

  1. #6166ea
  2. #575cd3
  3. #4e52bb
  4. #4447a4
  5. #3a3d8c
  6. #313375
  7. #27295e
  8. #1d1f46
  9. #13142f
  10. #0a0a17
  11. #000000

Tints

#6166ea mixed progressively with white.

  1. #6166ea
  2. #7175ec
  3. #8185ee
  4. #9094f0
  5. #a0a3f2
  6. #b0b3f5
  7. #c0c2f7
  8. #d0d1f9
  9. #dfe0fb
  10. #eff0fd
  11. #ffffff

Tones

#6166ea mixed progressively with gray.

  1. #6166ea
  2. #6469df
  3. #676bd5
  4. #6a6eca
  5. #6d70c0
  6. #7173b5
  7. #7476aa
  8. #7778a0
  9. #7a7b95
  10. #7d7d8b
  11. #808080

Readable text 4.57:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.6:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #767676 ≈ 0.003% of males
Achromatomaly #6e70b1 ≈ 0.001% of males
Protanopia #007bee ≈ 1.01% of males
Deuteranopia #0070e7 ≈ 1.27% of males
Tritanopia #00859e ≈ 0.0001% of males
Protanomaly #3973ed ≈ 1.08% of males
Deuteranomaly #316ce8 ≈ 4.63% of males
Tritanomaly #3b7ac1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-6166ea {
  color: #6166ea;
}
Background
.bg-6166ea {
  background-color: #6166ea;
  color: #000000;
}
Border
.border-6166ea {
  border: 2px solid #6166ea;
}
CSS variables
:root {
  --color-primary: #6166ea;
  --color-primary-rgb: 97 102 234;
  --color-primary-hsl: 238 77% 65%;
}
Gradient
.gradient-6166ea {
  background: linear-gradient(135deg, #6166ea, #a061ea);
}
Colored shadow
.shadow-6166ea {
  box-shadow: 0 8px 24px rgb(97 102 234 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 3.88 #7b68ee Medium Slate Blue ΔE 4.39 #4169e1 Royal Blue ΔE 5.23 #6a5acd Slate Blue ΔE 5.99 #6050dc Majorelle Blue ΔE 7.03 #5a4fcf Iris ΔE 8.13 #0070ff Brandeis Blue ΔE 8.34 #9e9915 Inverted #767676 Grayscale 

Ultramarine Blue
#6166ea  rgb(97, 102, 234)  hsl(238, 77%, 65%)  Ultramarine Blue
#eae561  rgb(234, 229, 97)  hsl(58, 77%, 65%)  Straw
#ea6166  rgb(234, 97, 102)  hsl(358, 77%, 65%)  Neon Fuchsia
#66ea61  rgb(102, 234, 97)  hsl(118, 77%, 65%)  Pastel Green