ColorTool
Log in
#274EA5

#274ea5 ≈ Cobalt Blue

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

#274ea5 is a color from the blue family, with medium lightness and moderate saturation. In the RGB model it is made of 15.29% red, 30.59% green and 64.71% blue; printed in CMYK it uses 76.36% cyan, 52.73% magenta, 0% yellow and 35.29% black. Its hue angle is 221.43°, with 61.76% saturation and 40% 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 7.72:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 2.67.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#336699
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.086

Complementary

  1. #274ea5
  2. #a57e27

Split complementary

  1. #274ea5
  2. #a53f27
  3. #8da527

Analogous

  1. #278da5
  2. #274ea5
  3. #3f27a5

Triadic

  1. #274ea5
  2. #a5274e
  3. #4ea527

Tetradic

  1. #274ea5
  2. #7e27a5
  3. #a57e27
  4. #4ea527

Square

  1. #274ea5
  2. #a5278d
  3. #a57e27
  4. #27a53f

Monochromatic

  1. #0a1329
  2. #183167
  3. #274ea5
  4. #4571d3
  5. #83a0e2

Shades

#274ea5 mixed progressively with black.

  1. #274ea5
  2. #234695
  3. #1f3e84
  4. #1b3774
  5. #172f63
  6. #142753
  7. #101f42
  8. #0c1732
  9. #081021
  10. #040811
  11. #000000

Tints

#274ea5 mixed progressively with white.

  1. #274ea5
  2. #3d60ae
  3. #5271b7
  4. #6883c0
  5. #7d95c9
  6. #93a7d2
  7. #a9b8db
  8. #becae4
  9. #d4dced
  10. #e9edf6
  11. #ffffff

Tones

#274ea5 mixed progressively with gray.

  1. #274ea5
  2. #3053a1
  3. #39589e
  4. #425d9a
  5. #4b6296
  6. #546793
  7. #5c6c8f
  8. #65718b
  9. #6e7687
  10. #777b84
  11. #808080

Readable text 7.72:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.72:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #535353 ≈ 0.003% of males
Achromatomaly #45517c ≈ 0.001% of males
Protanopia #1259a8 ≈ 1.01% of males
Deuteranopia #004da3 ≈ 1.27% of males
Tritanopia #006372 ≈ 0.0001% of males
Protanomaly #1c55a7 ≈ 1.08% of males
Deuteranomaly #024ea4 ≈ 4.63% of males
Tritanomaly #005b89 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-274ea5 {
  color: #274ea5;
}
Background
.bg-274ea5 {
  background-color: #274ea5;
  color: #ffffff;
}
Border
.border-274ea5 {
  border: 2px solid #274ea5;
}
CSS variables
:root {
  --color-primary: #274ea5;
  --color-primary-rgb: 39 78 165;
  --color-primary-hsl: 221 62% 40%;
}
Gradient
.gradient-274ea5 {
  background: linear-gradient(135deg, #274ea5, #3f27a5);
}
Colored shadow
.shadow-274ea5 {
  box-shadow: 0 8px 24px rgb(39 78 165 / 0.35);
}

#0047ab Cobalt Blue ΔE 2.67 #0f52ba Sapphire ΔE 3.05 #0f4d92 Yale Blue ΔE 4.08 #1560bd Denim ΔE 7.03 #26619c Lapis Lazuli ΔE 7.61 #1c39bb Persian Blue ΔE 7.75 #1034a6 Egyptian Blue ΔE 8.25 #d8b15a Inverted #535353 Grayscale 

Cobalt Blue
#274ea5  rgb(39, 78, 165)  hsl(221, 62%, 40%)  Cobalt Blue
#a57e27  rgb(165, 126, 39)  hsl(41, 62%, 40%)  Dark Goldenrod
#a5274e  rgb(165, 39, 78)  hsl(341, 62%, 40%)  Jazzberry Jam
#4ea527  rgb(78, 165, 39)  hsl(101, 62%, 40%)  Kelly Green