ColorTool
Log in
#305DFD

#305dfd ≈ Ultramarine Blue

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

#305dfd is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 18.82% red, 36.47% green and 99.22% blue; printed in CMYK it uses 81.03% cyan, 63.24% magenta, 0% yellow and 0.78% black. Its hue angle is 226.83°, with 98.09% saturation and 59.02% 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 5.11:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 2.86.

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 luminance0.1555

Complementary

  1. #305dfd
  2. #fdd030

Split complementary

  1. #305dfd
  2. #fd6a30
  3. #c3fd30

Analogous

  1. #30c3fd
  2. #305dfd
  3. #6a30fd

Triadic

  1. #305dfd
  2. #fd305d
  3. #5dfd30

Tetradic

  1. #305dfd
  2. #d030fd
  3. #fdd030
  4. #5dfd30

Square

  1. #305dfd
  2. #fd30c3
  3. #fdd030
  4. #30fd6a

Monochromatic

  1. #012193
  2. #0232de
  3. #305dfd
  4. #7c98fe
  5. #c8d4fe

Shades

#305dfd mixed progressively with black.

  1. #305dfd
  2. #2b54e4
  3. #264aca
  4. #2241b1
  5. #1d3898
  6. #182f7f
  7. #132565
  8. #0e1c4c
  9. #0a1333
  10. #050919
  11. #000000

Tints

#305dfd mixed progressively with white.

  1. #305dfd
  2. #456dfd
  3. #597dfd
  4. #6e8efe
  5. #839efe
  6. #98aefe
  7. #acbefe
  8. #c1cefe
  9. #d6dfff
  10. #eaefff
  11. #ffffff

Tones

#305dfd mixed progressively with gray.

  1. #305dfd
  2. #3861f1
  3. #4064e4
  4. #4868d8
  5. #506bcb
  6. #586fbf
  7. #6072b2
  8. #6876a6
  9. #707999
  10. #787d8d
  11. #808080

Readable text 5.11:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.11:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #6e6e6e ≈ 0.003% of males
Achromatomaly #5b68b9 ≈ 0.001% of males
Protanopia #0078ff ≈ 1.01% of males
Deuteranopia #0064fa ≈ 1.27% of males
Tritanopia #0088a5 ≈ 0.0001% of males
Protanomaly #006eff ≈ 1.08% of males
Deuteranomaly #0062fb ≈ 4.63% of males
Tritanomaly #0079ce ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-305dfd {
  color: #305dfd;
}
Background
.bg-305dfd {
  background-color: #305dfd;
  color: #ffffff;
}
Border
.border-305dfd {
  border: 2px solid #305dfd;
}
CSS variables
:root {
  --color-primary: #305dfd;
  --color-primary-rgb: 48 93 253;
  --color-primary-hsl: 227 98% 59%;
}
Gradient
.gradient-305dfd {
  background: linear-gradient(135deg, #305dfd, #6a30fd);
}
Colored shadow
.shadow-305dfd {
  box-shadow: 0 8px 24px rgb(48 93 253 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 2.86 #4169e1 Royal Blue ΔE 4.81 #0070ff Brandeis Blue ΔE 6.99 #6050dc Majorelle Blue ΔE 7.34 #5a4fcf Iris ΔE 8.16 #6a5acd Slate Blue ΔE 8.54 #7b68ee Medium Slate Blue ΔE 9.13 #cfa202 Inverted #6e6e6e Grayscale 

Ultramarine Blue
#305dfd  rgb(48, 93, 253)  hsl(227, 98%, 59%)  Ultramarine Blue
#fdd030  rgb(253, 208, 48)  hsl(47, 98%, 59%)  Sunglow
#fd305d  rgb(253, 48, 93)  hsl(347, 98%, 59%)  Neon Fuchsia
#5dfd30  rgb(93, 253, 48)  hsl(107, 98%, 59%)  Neon Green