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#2157EF

#2157ef ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#2157ef is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 12.94% red, 34.12% green and 93.73% blue; printed in CMYK it uses 86.19% cyan, 63.6% magenta, 0% yellow and 6.27% black. Its hue angle is 224.27°, with 86.55% saturation and 53.33% 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 5.72:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 5.17.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1337

Complementary

  1. #2157ef
  2. #efb921

Split complementary

  1. #2157ef
  2. #ef5221
  3. #beef21

Analogous

  1. #21beef
  2. #2157ef
  3. #5221ef

Triadic

  1. #2157ef
  2. #ef2157
  3. #57ef21

Tetradic

  1. #2157ef
  2. #b921ef
  3. #efb921
  4. #57ef21

Square

  1. #2157ef
  2. #ef21be
  3. #efb921
  4. #21ef52

Monochromatic

  1. #08236f
  2. #0d3ab6
  3. #2157ef
  4. #688df4
  5. #b0c3f9

Shades

#2157ef mixed progressively with black.

  1. #2157ef
  2. #1e4ed7
  3. #1a46bf
  4. #173da7
  5. #14348f
  6. #112c78
  7. #0d2360
  8. #0a1a48
  9. #071130
  10. #030918
  11. #000000

Tints

#2157ef mixed progressively with white.

  1. #2157ef
  2. #3768f1
  3. #4d79f2
  4. #6489f4
  5. #7a9af5
  6. #90abf7
  7. #a6bcf9
  8. #bccdfa
  9. #d3ddfc
  10. #e9eefd
  11. #ffffff

Tones

#2157ef mixed progressively with gray.

  1. #2157ef
  2. #2b5be4
  3. #345fd9
  4. #3e63ce
  5. #4767c3
  6. #516cb8
  7. #5a70ac
  8. #6474a1
  9. #6d7896
  10. #777c8b
  11. #808080

Readable text 5.72:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.67:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #666666 ≈ 0.003% of males
Achromatomaly #5361ae ≈ 0.001% of males
Protanopia #0070f4 ≈ 1.01% of males
Deuteranopia #005dec ≈ 1.27% of males
Tritanopia #00809b ≈ 0.0001% of males
Protanomaly #0067f2 ≈ 1.08% of males
Deuteranomaly #005bed ≈ 4.63% of males
Tritanomaly #0072c2 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-2157ef {
  color: #2157ef;
}
Background
.bg-2157ef {
  background-color: #2157ef;
  color: #ffffff;
}
Border
.border-2157ef {
  border: 2px solid #2157ef;
}
CSS variables
:root {
  --color-primary: #2157ef;
  --color-primary-rgb: 33 87 239;
  --color-primary-hsl: 224 87% 53%;
}
Gradient
.gradient-2157ef {
  background: linear-gradient(135deg, #2157ef, #5221ef);
}
Colored shadow
.shadow-2157ef {
  box-shadow: 0 8px 24px rgb(33 87 239 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 5.17 #4169e1 Royal Blue ΔE 5.87 #6050dc Majorelle Blue ΔE 6.78 #5a4fcf Iris ΔE 6.92 #0f52ba Sapphire ΔE 7.57 #1560bd Denim ΔE 8.18 #6a5acd Slate Blue ΔE 8.49 #dea810 Inverted #666666 Grayscale 

Ultramarine Blue
#2157ef  rgb(33, 87, 239)  hsl(224, 87%, 53%)  Ultramarine Blue
#efb921  rgb(239, 185, 33)  hsl(44, 87%, 53%)  Meat Brown
#ef2157  rgb(239, 33, 87)  hsl(344, 87%, 53%)  Amaranth
#57ef21  rgb(87, 239, 33)  hsl(104, 87%, 53%)  Harlequin