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Colour

#3355FF

  • #3355FF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3355FF is a blue with RGB values 51, 85, 255 and HSL 230°, 100%, 60%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3355FF#3355FF
HEX#3355FF
HEX (short)#35F
RGBrgb(51, 85, 255)
RGB (0–1)0.2, 0.3333, 1
RGB percentages20%, 33.3%, 100%
HSLhsl(230, 100%, 60%)
HSV / HSBhsv(230, 80%, 100%)
CMYK80%, 66.7%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,364,351
CSS custom property--colour: #3355FF;

Brightness & contrast

Relative luminance0.14421WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.41:1
Contrast with white5.41:1WCAG normal text: AA
Contrast with black3.88:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#CCAA00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0074FFno red cones; affects about 1% of men; ΔE 25 from the original
Deuteranopia#0060FCno green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#0084A3no blue cones; rare, and affects men and women equally; ΔE 91.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.41:1WCAG large text: AAA
Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 23.8Blue violet · ΔE 25.3Medium blue · ΔE 28.1Royal blue · ΔE 30.8Slate blue · ΔE 31.5Dark orchid · ΔE 32
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 23.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFDD33
Analogous#33BBFF, #7733FF
Triadic#FF3355, #55FF33
Split complementary#FF7733, #BBFF33
Tetradic#FF33BB, #FFDD33, #33FF77

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#CCD5FF
Lighter +20%#99AAFF
Lighter +10%#667FFF
Darker −10%#002AFF
Darker −20%#0022CC
Darker −30%#001999
Darker −40%#001166
More saturated +25%#3355FF
Less saturated −25%#4C66E6

Channel breakdown

R51
G85
B255
Red51 (20%)
Green85 (33.3%)
Blue255 (100%)
Hue230°
Saturation (HSL)100%
Lightness60%
Dominant channelBlue
Hex per channelR 33 · G 55 · B FF

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Every value on this page was computed from “3355ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.