ColorTool
Log in
#284FBF

#284fbf ≈ Sapphire

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

#284fbf is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 15.69% red, 30.98% green and 74.9% blue; printed in CMYK it uses 79.06% cyan, 58.64% magenta, 0% yellow and 25.1% black. Its hue angle is 224.5°, with 65.37% saturation and 45.29% 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. White text on this color reaches a contrast ratio of 7.09:1 (WCAG AAA). The closest named color is Sapphire (#0f52ba), ΔE 2.7.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.098

Complementary

  1. #284fbf
  2. #bf9828

Split complementary

  1. #284fbf
  2. #bf4c28
  3. #9abf28

Analogous

  1. #289abf
  2. #284fbf
  3. #4c28bf

Triadic

  1. #284fbf
  2. #bf284f
  3. #4fbf28

Tetradic

  1. #284fbf
  2. #9828bf
  3. #bf9828
  4. #4fbf28

Square

  1. #284fbf
  2. #bf289a
  3. #bf9828
  4. #28bf4c

Monochromatic

  1. #0e1b40
  2. #1b3580
  3. #284fbf
  4. #587adc
  5. #97ace9

Shades

#284fbf mixed progressively with black.

  1. #284fbf
  2. #2447ac
  3. #203f99
  4. #1c3786
  5. #182f73
  6. #142860
  7. #10204c
  8. #0c1839
  9. #081026
  10. #040813
  11. #000000

Tints

#284fbf mixed progressively with white.

  1. #284fbf
  2. #3e61c5
  3. #5372cc
  4. #6984d2
  5. #7e95d9
  6. #94a7df
  7. #a9b9e5
  8. #bfcaec
  9. #d4dcf2
  10. #eaedf9
  11. #ffffff

Tones

#284fbf mixed progressively with gray.

  1. #284fbf
  2. #3154b9
  3. #3a59b2
  4. #425eac
  5. #4b63a6
  6. #5468a0
  7. #5d6c99
  8. #667193
  9. #6e768d
  10. #777b86
  11. #808080

Readable text 7.09:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.96:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #585858 ≈ 0.003% of males
Achromatomaly #49558d ≈ 0.001% of males
Protanopia #005fc3 ≈ 1.01% of males
Deuteranopia #0051bd ≈ 1.27% of males
Tritanopia #006b7f ≈ 0.0001% of males
Protanomaly #0059c1 ≈ 1.08% of males
Deuteranomaly #0050be ≈ 4.63% of males
Tritanomaly #00619d ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-284fbf {
  color: #284fbf;
}
Background
.bg-284fbf {
  background-color: #284fbf;
  color: #ffffff;
}
Border
.border-284fbf {
  border: 2px solid #284fbf;
}
CSS variables
:root {
  --color-primary: #284fbf;
  --color-primary-rgb: 40 79 191;
  --color-primary-hsl: 225 65% 45%;
}
Gradient
.gradient-284fbf {
  background: linear-gradient(135deg, #284fbf, #4c28bf);
}
Colored shadow
.shadow-284fbf {
  box-shadow: 0 8px 24px rgb(40 79 191 / 0.35);
}

#0f52ba Sapphire ΔE 2.70 #0047ab Cobalt Blue ΔE 4.26 #1c39bb Persian Blue ΔE 6.64 #1560bd Denim ΔE 6.90 #4f42b5 Ocean Blue ΔE 7.26 #5a4fcf Iris ΔE 7.26 #0f4d92 Yale Blue ΔE 7.27 #d7b040 Inverted #585858 Grayscale 

Sapphire
#284fbf  rgb(40, 79, 191)  hsl(225, 65%, 45%)  Sapphire
#bf9828  rgb(191, 152, 40)  hsl(45, 65%, 45%)  Goldenrod
#bf284f  rgb(191, 40, 79)  hsl(345, 65%, 45%)  Cardinal
#4fbf28  rgb(79, 191, 40)  hsl(105, 65%, 45%)  Kelly Green