ColorTool
Log in
#040EF7

#040ef7 ≈ Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
Check contrast Explore in graph Random color

#040ef7 is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 1.57% red, 5.49% green and 96.86% blue; printed in CMYK it uses 98.38% cyan, 94.33% magenta, 0% yellow and 3.14% black. Its hue angle is 237.53°, with 96.81% saturation and 49.22% 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. White text on this color reaches a contrast ratio of 8.71:1 (WCAG AAA). The closest named color is Blue (#0000ff), ΔE 0.89.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0000ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0706

Complementary

  1. #040ef7
  2. #f7ed04

Split complementary

  1. #040ef7
  2. #f77404
  3. #88f704

Analogous

  1. #0488f7
  2. #040ef7
  3. #7404f7

Triadic

  1. #040ef7
  2. #f7040e
  3. #0ef704

Tetradic

  1. #040ef7
  2. #ed04f7
  3. #f7ed04
  4. #0ef704

Square

  1. #040ef7
  2. #f70488
  3. #f7ed04
  4. #04f774

Monochromatic

  1. #020560
  2. #030aac
  3. #040ef7
  4. #4b53fc
  5. #979bfd

Shades

#040ef7 mixed progressively with black.

  1. #040ef7
  2. #040dde
  3. #030bc6
  4. #030aad
  5. #020894
  6. #02077c
  7. #020663
  8. #01044a
  9. #010331
  10. #000119
  11. #000000

Tints

#040ef7 mixed progressively with white.

  1. #040ef7
  2. #1d26f8
  3. #363ef9
  4. #4f56f9
  5. #686efa
  6. #8287fb
  7. #9b9ffc
  8. #b4b7fd
  9. #cdcffd
  10. #e6e7fe
  11. #ffffff

Tones

#040ef7 mixed progressively with gray.

  1. #040ef7
  2. #1019eb
  3. #1d25df
  4. #2930d3
  5. #363cc7
  6. #4247bc
  7. #4e52b0
  8. #5b5ea4
  9. #676998
  10. #74758c
  11. #808080

Readable text 8.71:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.41:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #4b4b4b ≈ 0.003% of males
Achromatomaly #3a3bac ≈ 0.001% of males
Protanopia #0057fd ≈ 1.01% of males
Deuteranopia #003df4 ≈ 1.27% of males
Tritanopia #006992 ≈ 0.0001% of males
Protanomaly #0045fa ≈ 1.08% of males
Deuteranomaly #0031f5 ≈ 4.63% of males
Tritanomaly #0053c3 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-040ef7 {
  color: #040ef7;
}
Background
.bg-040ef7 {
  background-color: #040ef7;
  color: #ffffff;
}
Border
.border-040ef7 {
  border: 2px solid #040ef7;
}
CSS variables
:root {
  --color-primary: #040ef7;
  --color-primary-rgb: 4 14 247;
  --color-primary-hsl: 238 97% 49%;
}
Gradient
.gradient-040ef7 {
  background: linear-gradient(135deg, #040ef7, #7404f7);
}
Colored shadow
.shadow-040ef7 {
  box-shadow: 0 8px 24px rgb(4 14 247 / 0.35);
}

#0000ff Blue ΔE 0.89 #3f00ff Ultramarine ΔE 2.74 #5218fa Han Purple ΔE 4.44 #0000cd Medium Blue ΔE 5.82 #6f00ff Electric Indigo ΔE 7.33 #1c39bb Persian Blue ΔE 8.94 #0014a8 Zaffre ΔE 9.90 #fbf108 Inverted #4b4b4b Grayscale 

Blue
#040ef7  rgb(4, 14, 247)  hsl(238, 97%, 49%)  Blue
#f7ed04  rgb(247, 237, 4)  hsl(58, 97%, 49%)  Aureolin
#f7040e  rgb(247, 4, 14)  hsl(358, 97%, 49%)  Red
#0ef704  rgb(14, 247, 4)  hsl(118, 97%, 49%)  Lime