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Recognised as Colour

#3389BF

  • #3389BF
  • Blue
  • Dark
  • Nearest: Steel blue

#3389BF is a blue with RGB values 51, 137, 191 and HSL 203°, 58%, 47%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3389BF#3389BF
HEX#3389BF
RGBrgb(51, 137, 191)
RGB (0–1)0.2, 0.5373, 0.749
RGB percentages20%, 53.7%, 74.9%
HSLhsl(203.1, 57.9%, 47.5%)
HSV / HSBhsv(203.1, 73.3%, 74.9%)
CMYK73.3%, 28.3%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,377,599
CSS custom property--colour: #3389BF;

Brightness & contrast

Relative luminance0.22357WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.47:1
Contrast with white3.84:1WCAG normal text: Fail
Contrast with black5.47:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#CC7640

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#708AC1no red cones; affects about 1% of men; ΔE 13.6 from the original
Deuteranopia#5D7CBEno green cones; the most common form, about 1% of men; ΔE 15.6 from the original
Tritanopia#00969Cno blue cones; rare, and affects men and women equally; ΔE 32.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.84:1WCAG large text: AA
Contrast with black, large text5.47:1WCAG large text: AAA

Named colours

Steel blue · ΔE 5.1Deep skyblue · ΔE 22Cornflower blue · ΔE 23Light slate grey · ΔE 25Slate grey · ΔE 25.6Light skyblue · ΔE 26.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 5.14, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF6933
Analogous#33BFAF, #3343BF
Triadic#BF3389, #89BF33
Split complementary#BF3343, #BFAF33
Tetradic#AF33BF, #BF6933, #43BF33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CCE3F2
Lighter +30%#A4CDE7
Lighter +20%#7CB7DC
Lighter +10%#54A1D1
Darker −10%#286C97
Darker −20%#1E4F6E
Darker −30%#133246
Darker −40%#08161E
More saturated +25%#1590DD
Less saturated −25%#5182A1

Channel breakdown

R51
G137
B191
Red51 (20%)
Green137 (53.7%)
Blue191 (74.9%)
Hue203.14°
Saturation (HSL)57.85%
Lightness47.45%
Dominant channelBlue
Hex per channelR 33 · G 89 · B BF

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Every value on this page was computed from “3389bf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.