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Colour

#039FFF

  • #039FFF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#039FFF is a blue with RGB values 3, 159, 255 and HSL 203°, 100%, 51%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#039FFF#039FFF
HEX#039FFF
RGBrgb(3, 159, 255)
RGB (0–1)0.0118, 0.6235, 1
RGB percentages1.2%, 62.4%, 100%
HSLhsl(202.9, 100%, 50.6%)
HSV / HSBhsv(202.9, 98.8%, 100%)
CMYK98.8%, 37.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer237,567
CSS custom property--colour: #039FFF;

Brightness & contrast

Relative luminance0.32036WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.41:1
Contrast with white2.84:1WCAG normal text: Fail
Contrast with black7.41:1WCAG normal text: AAA
Greyscale equivalent#858585
Inverted#FC6000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6FA4FFno red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#4B90FDno green cones; the most common form, about 1% of men; ΔE 14.2 from the original
Tritanopia#00B6C3no blue cones; rare, and affects men and women equally; ΔE 51.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.84:1WCAG large text: Fail
Contrast with black, large text7.41:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.1Dodgerblue · ΔE 12.4Deep skyblue · ΔE 24.7Steel blue · ΔE 27.4Royal blue · ΔE 31.5Light skyblue · ΔE 34.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF6303
Analogous#03FFE1, #0321FF
Triadic#FF039F, #9FFF03
Split complementary#FF0321, #FFE103
Tetradic#E103FF, #FF6303, #21FF03

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFEDFF
Lighter +30%#9CD9FF
Lighter +20%#69C6FF
Lighter +10%#36B2FF
Darker −10%#0080CF
Darker −20%#00619C
Darker −30%#004169
Darker −40%#002136
More saturated +25%#039FFF
Less saturated −25%#2297E0

Channel breakdown

R3
G159
B255
Red3 (1.2%)
Green159 (62.4%)
Blue255 (100%)
Hue202.86°
Saturation (HSL)100%
Lightness50.59%
Dominant channelBlue
Hex per channelR 03 · G 9F · B FF

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Every value on this page was computed from “039fff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.