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Recognised as Colour

#339DFE

  • #339DFE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#339DFE is a blue with RGB values 51, 157, 254 and HSL 209°, 99%, 60%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#339DFE#339DFE
HEX#339DFE
RGBrgb(51, 157, 254)
RGB (0–1)0.2, 0.6157, 0.9961
RGB percentages20%, 61.6%, 99.6%
HSLhsl(208.7, 99%, 59.8%)
HSV / HSBhsv(208.7, 79.9%, 99.6%)
CMYK79.9%, 38.2%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,382,782
CSS custom property--colour: #339DFE;

Brightness & contrast

Relative luminance0.31974WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.39:1
Contrast with white2.84:1WCAG normal text: Fail
Contrast with black7.39:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#CC6201

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6EA3FFno red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#4E91FCno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#00B4C1no blue cones; rare, and affects men and women equally; ΔE 53.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.84:1WCAG large text: Fail
Contrast with black, large text7.39:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.4Dodgerblue · ΔE 10.3Deep skyblue · ΔE 26.9Steel blue · ΔE 27.7Royal blue · ΔE 29Medium purple · ΔE 35
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.44, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FE9433
Analogous#33FEF9, #3338FE
Triadic#FE339D, #9DFE33
Split complementary#FE3338, #FEF933
Tetradic#F933FE, #FE9433, #38FE33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FEFFFF
Lighter +30%#CBE6FF
Lighter +20%#99CEFE
Lighter +10%#66B5FE
Darker −10%#0185FD
Darker −20%#016ACA
Darker −30%#014F97
Darker −40%#003565
More saturated +25%#329DFF
Less saturated −25%#4D9CE4

Channel breakdown

R51
G157
B254
Red51 (20%)
Green157 (61.6%)
Blue254 (99.6%)
Hue208.67°
Saturation (HSL)99.02%
Lightness59.8%
Dominant channelBlue
Hex per channelR 33 · G 9D · B FE

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Every value on this page was computed from “339dfe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.