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Recognised as Colour

#05389B

  • #05389B
  • Blue
  • Dark
  • Nearest: Midnight blue

#05389B is a blue with RGB values 5, 56, 155 and HSL 220°, 94%, 31%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#05389B#05389B
HEX#05389B
RGBrgb(5, 56, 155)
RGB (0–1)0.0196, 0.2196, 0.6078
RGB percentages2%, 22%, 60.8%
HSLhsl(219.6, 93.7%, 31.4%)
HSV / HSBhsv(219.6, 96.8%, 60.8%)
CMYK96.8%, 63.9%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer342,171
CSS custom property--colour: #05389B;

Brightness & contrast

Relative luminance0.05227WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.27:1
Contrast with white10.27:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#FAC764

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00479Eno red cones; affects about 1% of men; ΔE 11.6 from the original
Deuteranopia#003A99no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#005264no blue cones; rare, and affects men and women equally; ΔE 58.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.27:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 15Dark slateblue · ΔE 16Rebecca purple · ΔE 20.3Slate blue · ΔE 20.4Royal blue · ΔE 21.8Navy · ΔE 26.4
Nearest named CSS colourMidnight blue (#191970)ΔE 15.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B6805
Analogous#05839B, #1D059B
Triadic#9B0538, #389B05
Split complementary#9B1D05, #839B05
Tetradic#9B0583, #9B6805, #059B1D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#72A0FA
Lighter +30%#407FF9
Lighter +20%#0F5EF7
Lighter +10%#074ACC
Darker −10%#03266A
Darker −20%#021438
Darker −30%#000207
Darker −40%#000000
More saturated +25%#0036A0
Less saturated −25%#193E87

Channel breakdown

R5
G56
B155
Red5 (2%)
Green56 (22%)
Blue155 (60.8%)
Hue219.6°
Saturation (HSL)93.75%
Lightness31.37%
Dominant channelBlue
Hex per channelR 05 · G 38 · B 9B

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Every value on this page was computed from “05389b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.