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Recognised as Colour

#0303DF

  • #0303DF
  • Blue
  • Dark
  • Nearest: Medium blue

#0303DF is a blue with RGB values 3, 3, 223 and HSL 240°, 97%, 44%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0303DF#0303DF
HEX#0303DF
RGBrgb(3, 3, 223)
RGB (0–1)0.0118, 0.0118, 0.8745
RGB percentages1.2%, 1.2%, 87.5%
HSLhsl(240, 97.3%, 44.3%)
HSV / HSBhsv(240, 98.7%, 87.5%)
CMYK98.7%, 98.7%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer197,599
CSS custom property--colour: #0303DF;

Brightness & contrast

Relative luminance0.05412WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.08:1
Contrast with white10.08:1WCAG normal text: AAA
Contrast with black2.08:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#FCFC20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DE4no red cones; affects about 1% of men; ΔE 36.2 from the original
Deuteranopia#0035DCno green cones; the most common form, about 1% of men; ΔE 22.3 from the original
Tritanopia#005D82no blue cones; rare, and affects men and women equally; ΔE 106.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.08:1WCAG large text: AAA
Contrast with black, large text2.08:1WCAG large text: Fail

Named colours

Medium blue · ΔE 7.4Blue · ΔE 14.2Blue violet · ΔE 26.5Dark violet · ΔE 29.6Dark blue · ΔE 37.5Dark orchid · ΔE 40.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 7.37, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DFDF03
Analogous#0371DF, #7103DF
Triadic#DF0303, #03DF03
Split complementary#DF7103, #71DF03
Tetradic#DF0371, #DFDF03, #03DF71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B0B0FE
Lighter +30%#7E7EFD
Lighter +20%#4B4BFD
Lighter +10%#1919FC
Darker −10%#0202AD
Darker −20%#02027A
Darker −30%#010148
Darker −40%#000016
More saturated +25%#0000E2
Less saturated −25%#1F1FC3

Channel breakdown

R3
G3
B223
Red3 (1.2%)
Green3 (1.2%)
Blue223 (87.5%)
Hue240°
Saturation (HSL)97.35%
Lightness44.31%
Dominant channelBlue
Hex per channelR 03 · G 03 · B DF

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Every value on this page was computed from “0303df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.