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#178BBF

#178bbf ≈ Steel Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#178bbf is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 9.02% red, 54.51% green and 74.9% blue; printed in CMYK it uses 87.96% cyan, 27.23% magenta, 0% yellow and 25.1% black. Its hue angle is 198.57°, with 78.5% saturation and 41.96% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and brand accents. Black text on this color reaches a contrast ratio of 5.48:1 (WCAG AA). The closest named color is Steel Blue (#4682b4), ΔE 5.73.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0099cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2241

Complementary

  1. #178bbf
  2. #bf4b17

Split complementary

  1. #178bbf
  2. #bf1737
  3. #bf9f17

Analogous

  1. #17bf9f
  2. #178bbf
  3. #1737bf

Triadic

  1. #178bbf
  2. #bf178b
  3. #8bbf17

Tetradic

  1. #178bbf
  2. #4b17bf
  3. #bf4b17
  4. #8bbf17

Square

  1. #178bbf
  2. #9f17bf
  3. #bf4b17
  4. #37bf17

Monochromatic

  1. #072836
  2. #0f597b
  3. #178bbf
  4. #3bb2e7
  5. #7fcdf0

Shades

#178bbf mixed progressively with black.

  1. #178bbf
  2. #157dac
  3. #126f99
  4. #106186
  5. #0e5373
  6. #0c4660
  7. #09384c
  8. #072a39
  9. #051c26
  10. #020e13
  11. #000000

Tints

#178bbf mixed progressively with white.

  1. #178bbf
  2. #2e97c5
  3. #45a2cc
  4. #5daed2
  5. #74b9d9
  6. #8bc5df
  7. #a2d1e5
  8. #b9dcec
  9. #d1e8f2
  10. #e8f3f9
  11. #ffffff

Tones

#178bbf mixed progressively with gray.

  1. #178bbf
  2. #228ab9
  3. #2c89b2
  4. #3788ac
  5. #4187a6
  6. #4c86a0
  7. #568499
  8. #618393
  9. #6b828d
  10. #768186
  11. #808080

Readable text 3.83:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.48:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #828282 ≈ 0.003% of males
Achromatomaly #68869e ≈ 0.001% of males
Protanopia #718ac1 ≈ 1.01% of males
Deuteranopia #5c7cbe ≈ 1.27% of males
Tritanopia #00999d ≈ 0.0001% of males
Protanomaly #5a8bc0 ≈ 1.08% of males
Deuteranomaly #4982be ≈ 4.63% of males
Tritanomaly #0093ac ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-178bbf {
  color: #178bbf;
}
Background
.bg-178bbf {
  background-color: #178bbf;
  color: #000000;
}
Border
.border-178bbf {
  border: 2px solid #178bbf;
}
CSS variables
:root {
  --color-primary: #178bbf;
  --color-primary-rgb: 23 139 191;
  --color-primary-hsl: 199 79% 42%;
}
Gradient
.gradient-178bbf {
  background: linear-gradient(135deg, #178bbf, #1737bf);
}
Colored shadow
.shadow-178bbf {
  box-shadow: 0 8px 24px rgb(23 139 191 / 0.35);
}

#4682b4 Steel Blue ΔE 5.73 #007ba7 Cerulean ΔE 6.39 #5d8aa8 Air Force Blue ΔE 6.55 #0095b6 Bondi Blue ΔE 7.42 #56a0d3 Carolina Blue ΔE 8.19 #318ce7 Bleu de France ΔE 8.23 #417dc1 Tufts Blue ΔE 8.80 #e87440 Inverted #828282 Grayscale 

Steel Blue
#178bbf  rgb(23, 139, 191)  hsl(199, 79%, 42%)  Steel Blue
#bf4b17  rgb(191, 75, 23)  hsl(19, 79%, 42%)  Mahogany
#bf178b  rgb(191, 23, 139)  hsl(319, 79%, 42%)  Medium Violet Red
#8bbf17  rgb(139, 191, 23)  hsl(79, 79%, 42%)  Apple Green