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Recognised as Colour

#309EF6

  • #309EF6
  • Blue
  • Dark
  • Nearest: Cornflower blue

#309EF6 is a blue with RGB values 48, 158, 246 and HSL 207°, 92%, 58%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#309EF6#309EF6
HEX#309EF6
RGBrgb(48, 158, 246)
RGB (0–1)0.1882, 0.6196, 0.9647
RGB percentages18.8%, 62%, 96.5%
HSLhsl(206.7, 91.7%, 57.6%)
HSV / HSBhsv(206.7, 80.5%, 96.5%)
CMYK80.5%, 35.8%, 0%, 3.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,186,422
CSS custom property--colour: #309EF6;

Brightness & contrast

Relative luminance0.31736WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.35:1
Contrast with white2.86:1WCAG normal text: Fail
Contrast with black7.35:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#CF6109

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#74A2FAno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#5791F4no green cones; the most common form, about 1% of men; ΔE 12.6 from the original
Tritanopia#00B3BEno blue cones; rare, and affects men and women equally; ΔE 49.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.86:1WCAG large text: Fail
Contrast with black, large text7.35:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.2Dodgerblue · ΔE 15.5Deep skyblue · ΔE 22.1Steel blue · ΔE 23.2Light skyblue · ΔE 31Royal blue · ΔE 33.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F68830
Analogous#30F6EB, #303BF6
Triadic#F6309E, #9EF630
Split complementary#F6303B, #F6EB30
Tetradic#EB30F6, #F68830, #3BF630

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3FAFF
Lighter +30%#C3E3FC
Lighter +20%#92CCFA
Lighter +10%#61B5F8
Darker −10%#0A86E9
Darker −20%#086AB8
Darker −30%#064E87
Darker −40%#043256
More saturated +25%#279FFF
Less saturated −25%#4B9BDB

Channel breakdown

R48
G158
B246
Red48 (18.8%)
Green158 (62%)
Blue246 (96.5%)
Hue206.67°
Saturation (HSL)91.67%
Lightness57.65%
Dominant channelBlue
Hex per channelR 30 · G 9E · B F6

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Every value on this page was computed from “309ef6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.