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Colour

#0D57B4

  • #0D57B4
  • Blue
  • Dark
  • Nearest: Royal blue

#0D57B4 is a blue with RGB values 13, 87, 180 and HSL 213°, 87%, 38%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0D57B4#0D57B4
HEX#0D57B4
RGBrgb(13, 87, 180)
RGB (0–1)0.051, 0.3412, 0.7059
RGB percentages5.1%, 34.1%, 70.6%
HSLhsl(213.4, 86.5%, 37.8%)
HSV / HSBhsv(213.4, 92.8%, 70.6%)
CMYK92.8%, 51.7%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer874,420
CSS custom property--colour: #0D57B4;

Brightness & contrast

Relative luminance0.10197WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.91:1
Contrast with white6.91:1WCAG normal text: AA
Contrast with black3.04:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#F2A84B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1561B7no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#0053B2no green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#006E7Dno blue cones; rare, and affects men and women equally; ΔE 53.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.91:1WCAG large text: AAA
Contrast with black, large text3.04:1WCAG large text: AA

Named colours

Royal blue · ΔE 17.5Dark slateblue · ΔE 18Slate blue · ΔE 21.5Dodgerblue · ΔE 23.6Cornflower blue · ΔE 25.3Medium purple · ΔE 27.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 17.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B46A0D
Analogous#0DABB4, #160DB4
Triadic#B40D57, #57B40D
Split complementary#B4160D, #ABB40D
Tetradic#B40DAB, #B46A0D, #0DB416

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#96C1F7
Lighter +30%#66A5F4
Lighter +20%#3689F1
Lighter +10%#106EE4
Darker −10%#0A4084
Darker −20%#062955
Darker −30%#031225
Darker −40%#000000
More saturated +25%#0056C1
Less saturated −25%#255A9C

Channel breakdown

R13
G87
B180
Red13 (5.1%)
Green87 (34.1%)
Blue180 (70.6%)
Hue213.41°
Saturation (HSL)86.53%
Lightness37.84%
Dominant channelBlue
Hex per channelR 0D · G 57 · B B4

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Every value on this page was computed from “0d57b4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.