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Recognised as Colour

#0539BC

  • #0539BC
  • Blue
  • Dark
  • Nearest: Dark blue

#0539BC is a blue with RGB values 5, 57, 188 and HSL 223°, 95%, 38%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0539BC#0539BC
HEX#0539BC
RGBrgb(5, 57, 188)
RGB (0–1)0.0196, 0.2235, 0.7373
RGB percentages2%, 22.4%, 73.7%
HSLhsl(223, 94.8%, 37.8%)
HSV / HSBhsv(223, 97.3%, 73.7%)
CMYK97.3%, 69.7%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer342,460
CSS custom property--colour: #0539BC;

Brightness & contrast

Relative luminance0.06589WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.06:1
Contrast with white9.06:1WCAG normal text: AAA
Contrast with black2.32:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#FAC643

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051C0no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#0040BAno green cones; the most common form, about 1% of men; ΔE 6.7 from the original
Tritanopia#005E76no blue cones; rare, and affects men and women equally; ΔE 74.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.06:1WCAG large text: AAA
Contrast with black, large text2.32:1WCAG large text: Fail

Named colours

Dark blue · ΔE 20.1Slate blue · ΔE 20.3Navy · ΔE 21.1Royal blue · ΔE 22Medium slateblue · ΔE 22.4Indigo · ΔE 24.8
Nearest named CSS colourDark blue (#00008B)ΔE 20.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC8805
Analogous#0595BC, #2D05BC
Triadic#BC0539, #39BC05
Split complementary#BC2D05, #95BC05
Tetradic#BC0594, #BC8805, #05BC2D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#91AFFC
Lighter +30%#5F8BFB
Lighter +20%#2E67F9
Lighter +10%#0648EE
Darker −10%#042A8A
Darker −20%#021B59
Darker −30%#010C27
Darker −40%#000000
More saturated +25%#0037C1
Less saturated −25%#1D43A4

Channel breakdown

R5
G57
B188
Red5 (2%)
Green57 (22.4%)
Blue188 (73.7%)
Hue222.95°
Saturation (HSL)94.82%
Lightness37.84%
Dominant channelBlue
Hex per channelR 05 · G 39 · B BC

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Every value on this page was computed from “0539bc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.