ColorTool
Log in
#255DEA

#255dea ≈ Ultramarine Blue

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

#255dea is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 14.51% red, 36.47% green and 91.76% blue; printed in CMYK it uses 84.19% cyan, 60.26% magenta, 0% yellow and 8.24% black. Its hue angle is 222.94°, with 82.43% saturation and 53.14% 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 5.48:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 4.

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 luminance0.1416

Complementary

  1. #255dea
  2. #eab225

Split complementary

  1. #255dea
  2. #ea4f25
  3. #c0ea25

Analogous

  1. #25c0ea
  2. #255dea
  3. #4f25ea

Triadic

  1. #255dea
  2. #ea255d
  3. #5dea25

Tetradic

  1. #255dea
  2. #b225ea
  3. #eab225
  4. #5dea25

Square

  1. #255dea
  2. #ea25c0
  3. #eab225
  4. #25ea4f

Monochromatic

  1. #0a266c
  2. #113fb1
  3. #255dea
  4. #6b91f1
  5. #b1c5f7

Shades

#255dea mixed progressively with black.

  1. #255dea
  2. #2154d3
  3. #1e4abb
  4. #1a41a4
  5. #16388c
  6. #132f75
  7. #0f255e
  8. #0b1c46
  9. #07132f
  10. #040917
  11. #000000

Tints

#255dea mixed progressively with white.

  1. #255dea
  2. #3b6dec
  3. #517dee
  4. #668ef0
  5. #7c9ef2
  6. #92aef5
  7. #a8bef7
  8. #becef9
  9. #d3dffb
  10. #e9effd
  11. #ffffff

Tones

#255dea mixed progressively with gray.

  1. #255dea
  2. #2e61df
  3. #3764d5
  4. #4068ca
  5. #496bc0
  6. #536fb5
  7. #5c72aa
  8. #6576a0
  9. #6e7995
  10. #777d8b
  11. #808080

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

Achromatopsia #696969 ≈ 0.003% of males
Achromatomaly #5664ac ≈ 0.001% of males
Protanopia #0072ef ≈ 1.01% of males
Deuteranopia #0060e7 ≈ 1.27% of males
Tritanopia #00829b ≈ 0.0001% of males
Protanomaly #006bed ≈ 1.08% of males
Deuteranomaly #005fe8 ≈ 4.63% of males
Tritanomaly #0075c0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-255dea {
  color: #255dea;
}
Background
.bg-255dea {
  background-color: #255dea;
  color: #ffffff;
}
Border
.border-255dea {
  border: 2px solid #255dea;
}
CSS variables
:root {
  --color-primary: #255dea;
  --color-primary-rgb: 37 93 234;
  --color-primary-hsl: 223 82% 53%;
}
Gradient
.gradient-255dea {
  background: linear-gradient(135deg, #255dea, #4f25ea);
}
Colored shadow
.shadow-255dea {
  box-shadow: 0 8px 24px rgb(37 93 234 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 4.00 #4169e1 Royal Blue ΔE 4.07 #1560bd Denim ΔE 6.93 #0070ff Brandeis Blue ΔE 7.11 #0f52ba Sapphire ΔE 7.46 #6050dc Majorelle Blue ΔE 7.90 #5a4fcf Iris ΔE 7.96 #daa215 Inverted #696969 Grayscale 

Ultramarine Blue
#255dea  rgb(37, 93, 234)  hsl(223, 82%, 53%)  Ultramarine Blue
#eab225  rgb(234, 178, 37)  hsl(43, 82%, 53%)  Meat Brown
#ea255d  rgb(234, 37, 93)  hsl(343, 82%, 53%)  Cerise
#5dea25  rgb(93, 234, 37)  hsl(103, 82%, 53%)  Harlequin