ColorTool
Log in
#121BCB

#121bcb ≈ Medium Blue

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

#121bcb is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 7.06% red, 10.59% green and 79.61% blue; printed in CMYK it uses 91.13% cyan, 86.7% magenta, 0% yellow and 20.39% black. Its hue angle is 237.08°, with 83.71% saturation and 43.33% 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 10.27:1 (WCAG AAA). The closest named color is Medium Blue (#0000cd), ΔE 2.56.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0033cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0522

Complementary

  1. #121bcb
  2. #cbc212

Split complementary

  1. #121bcb
  2. #cb6512
  3. #77cb12

Analogous

  1. #1277cb
  2. #121bcb
  3. #6512cb

Triadic

  1. #121bcb
  2. #cb121b
  3. #1bcb12

Tetradic

  1. #121bcb
  2. #c212cb
  3. #cbc212
  4. #1bcb12

Square

  1. #121bcb
  2. #cb1277
  3. #cbc212
  4. #12cb65

Monochromatic

  1. #06083e
  2. #0c1285
  3. #121bcb
  4. #3c44ee
  5. #8288f4

Shades

#121bcb mixed progressively with black.

  1. #121bcb
  2. #1018b7
  3. #0e16a2
  4. #0d138e
  5. #0b107a
  6. #090e66
  7. #070b51
  8. #05083d
  9. #040529
  10. #020314
  11. #000000

Tints

#121bcb mixed progressively with white.

  1. #121bcb
  2. #2a32d0
  3. #4149d5
  4. #595fdb
  5. #7176e0
  6. #898de5
  7. #a0a4ea
  8. #b8bbef
  9. #d0d1f5
  10. #e7e8fa
  11. #ffffff

Tones

#121bcb mixed progressively with gray.

  1. #121bcb
  2. #1d25c4
  3. #282fbc
  4. #3339b5
  5. #3e43ad
  6. #494ea6
  7. #54589e
  8. #5f6297
  9. #6a6c8f
  10. #757688
  11. #808080

Readable text 10.27:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.04:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #414141 ≈ 0.003% of males
Achromatomaly #34358e ≈ 0.001% of males
Protanopia #004ad0 ≈ 1.01% of males
Deuteranopia #0036c8 ≈ 1.27% of males
Tritanopia #005878 ≈ 0.0001% of males
Protanomaly #003cce ≈ 1.08% of males
Deuteranomaly #002ec9 ≈ 4.63% of males
Tritanomaly #0047a0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-121bcb {
  color: #121bcb;
}
Background
.bg-121bcb {
  background-color: #121bcb;
  color: #ffffff;
}
Border
.border-121bcb {
  border: 2px solid #121bcb;
}
CSS variables
:root {
  --color-primary: #121bcb;
  --color-primary-rgb: 18 27 203;
  --color-primary-hsl: 237 84% 43%;
}
Gradient
.gradient-121bcb {
  background: linear-gradient(135deg, #121bcb, #6512cb);
}
Colored shadow
.shadow-121bcb {
  box-shadow: 0 8px 24px rgb(18 27 203 / 0.35);
}

#0000cd Medium Blue ΔE 2.56 #0014a8 Zaffre ΔE 5.00 #0000ff Blue ΔE 5.84 #1c39bb Persian Blue ΔE 6.56 #3f00ff Ultramarine ΔE 7.19 #1034a6 Egyptian Blue ΔE 7.35 #002395 Imperial Blue ΔE 7.48 #ede434 Inverted #414141 Grayscale 

Medium Blue
#121bcb  rgb(18, 27, 203)  hsl(237, 84%, 43%)  Medium Blue
#cbc212  rgb(203, 194, 18)  hsl(57, 84%, 43%)  Citrine
#cb121b  rgb(203, 18, 27)  hsl(357, 84%, 43%)  Venetian Red
#1bcb12  rgb(27, 203, 18)  hsl(117, 84%, 43%)  Lime Green