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Colour

#3347BD

  • #3347BD
  • Blue
  • Dark
  • Nearest: Slate blue

#3347BD is a blue with RGB values 51, 71, 189 and HSL 231°, 58%, 47%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#3347BD#3347BD
HEX#3347BD
RGBrgb(51, 71, 189)
RGB (0–1)0.2, 0.2784, 0.7412
RGB percentages20%, 27.8%, 74.1%
HSLhsl(231.3, 57.5%, 47.1%)
HSV / HSBhsv(231.3, 73%, 74.1%)
CMYK73%, 62.4%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,360,701
CSS custom property--colour: #3347BD;

Brightness & contrast

Relative luminance0.08884WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.56:1
Contrast with white7.56:1WCAG normal text: AAA
Contrast with black2.78:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#CCB842

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005BC1no red cones; affects about 1% of men; ΔE 16.5 from the original
Deuteranopia#004EBBno green cones; the most common form, about 1% of men; ΔE 9 from the original
Tritanopia#00657Bno blue cones; rare, and affects men and women equally; ΔE 67 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.56:1WCAG large text: AAA
Contrast with black, large text2.78:1WCAG large text: Fail

Named colours

Slate blue · ΔE 11.9Royal blue · ΔE 14Medium slateblue · ΔE 18.2Rebecca purple · ΔE 19.8Dark slateblue · ΔE 23.8Medium purple · ΔE 24.1
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 11.88, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BDA933
Analogous#338CBD, #6433BD
Triadic#BD3347, #47BD33
Split complementary#BD6433, #8CBD33
Tetradic#BD338C, #BDA933, #33BD64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBD1F1
Lighter +30%#A3ADE6
Lighter +20%#7B89DB
Lighter +10%#5365D0
Darker −10%#283895
Darker −20%#1D296D
Darker −30%#121A45
Darker −40%#080B1C
More saturated +25%#1532DB
Less saturated −25%#515C9F

Channel breakdown

R51
G71
B189
Red51 (20%)
Green71 (27.8%)
Blue189 (74.1%)
Hue231.3°
Saturation (HSL)57.5%
Lightness47.06%
Dominant channelBlue
Hex per channelR 33 · G 47 · B BD

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Every value on this page was computed from “3347bd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.