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Colour

#3363FF

  • #3363FF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3363FF is a blue with RGB values 51, 99, 255 and HSL 226°, 100%, 60%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3363FF#3363FF
HEX#3363FF
RGBrgb(51, 99, 255)
RGB (0–1)0.2, 0.3882, 1
RGB percentages20%, 38.8%, 100%
HSLhsl(225.9, 100%, 60%)
HSV / HSBhsv(225.9, 80%, 100%)
CMYK80%, 61.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,367,935
CSS custom property--colour: #3363FF;

Brightness & contrast

Relative luminance0.16847WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.81:1
Contrast with white4.81:1WCAG normal text: AA
Contrast with black4.37:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#CC9C00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#007CFFno red cones; affects about 1% of men; ΔE 20.9 from the original
Deuteranopia#0069FCno green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#008CA8no blue cones; rare, and affects men and women equally; ΔE 84.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.81:1WCAG large text: AAA
Contrast with black, large text4.37:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 16.9Royal blue · ΔE 21Slate blue · ΔE 24.3Blue violet · ΔE 31.8Medium purple · ΔE 32.5Dark orchid · ΔE 34
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 16.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFCF33
Analogous#33C9FF, #6933FF
Triadic#FF3363, #63FF33
Split complementary#FF6933, #C9FF33
Tetradic#FF33C9, #FFCF33, #33FF69

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#CCD8FF
Lighter +20%#99B1FF
Lighter +10%#668AFF
Darker −10%#003CFF
Darker −20%#0030CC
Darker −30%#002499
Darker −40%#001866
More saturated +25%#3363FF
Less saturated −25%#4C71E6

Channel breakdown

R51
G99
B255
Red51 (20%)
Green99 (38.8%)
Blue255 (100%)
Hue225.88°
Saturation (HSL)100%
Lightness60%
Dominant channelBlue
Hex per channelR 33 · G 63 · B FF

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Every value on this page was computed from “3363ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.