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Colour

#3353B1

  • #3353B1
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3353B1 is a blue with RGB values 51, 83, 177 and HSL 225°, 55%, 45%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3353B1#3353B1
HEX#3353B1
RGBrgb(51, 83, 177)
RGB (0–1)0.2, 0.3255, 0.6941
RGB percentages20%, 32.5%, 69.4%
HSLhsl(224.8, 55.3%, 44.7%)
HSV / HSBhsv(224.8, 71.2%, 69.4%)
CMYK71.2%, 53.1%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,363,761
CSS custom property--colour: #3353B1;

Brightness & contrast

Relative luminance0.10065WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.97:1
Contrast with white6.97:1WCAG normal text: AA
Contrast with black3.01:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#CCAC4E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#125FB4no red cones; affects about 1% of men; ΔE 10.7 from the original
Deuteranopia#0054AFno green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#006A7Ano blue cones; rare, and affects men and women equally; ΔE 55.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.97:1WCAG large text: AAA
Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 14.4Royal blue · ΔE 16.2Slate blue · ΔE 17.3Rebecca purple · ΔE 23.4Medium purple · ΔE 23.5Midnight blue · ΔE 24.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B19133
Analogous#3392B1, #5233B1
Triadic#B13353, #53B133
Split complementary#B15233, #92B133
Tetradic#B13392, #B19133, #33B152

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2CDEE
Lighter +30%#9BADE2
Lighter +20%#738DD7
Lighter +10%#4C6CCB
Darker −10%#284089
Darker −20%#1C2E62
Darker −30%#111B3A
Darker −40%#050913
More saturated +25%#1645CE
Less saturated −25%#4F6194

Channel breakdown

R51
G83
B177
Red51 (20%)
Green83 (32.5%)
Blue177 (69.4%)
Hue224.76°
Saturation (HSL)55.26%
Lightness44.71%
Dominant channelBlue
Hex per channelR 33 · G 53 · B B1

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Every value on this page was computed from “3353b1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.