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Recognised as Colour

#3191DC

  • #3191DC
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3191DC is a blue with RGB values 49, 145, 220 and HSL 206°, 71%, 53%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3191DC#3191DC
HEX#3191DC
RGBrgb(49, 145, 220)
RGB (0–1)0.1922, 0.5686, 0.8627
RGB percentages19.2%, 56.9%, 86.3%
HSLhsl(206.3, 71%, 52.7%)
HSV / HSBhsv(206.3, 77.7%, 86.3%)
CMYK77.7%, 34.1%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,248,604
CSS custom property--colour: #3191DC;

Brightness & contrast

Relative luminance0.26071WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.21:1
Contrast with white3.38:1WCAG normal text: Fail
Contrast with black6.21:1WCAG normal text: AA
Greyscale equivalent#828282
Inverted#CE6E23

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6E94DFno red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#5585DBno green cones; the most common form, about 1% of men; ΔE 12.6 from the original
Tritanopia#00A3ACno blue cones; rare, and affects men and women equally; ΔE 43.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.38:1WCAG large text: AA
Contrast with black, large text6.21:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.4Steel blue · ΔE 15.1Dodgerblue · ΔE 21.1Deep skyblue · ΔE 21.6Light skyblue · ΔE 29.2Sky blue · ΔE 35
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DC7C31
Analogous#31DCD1, #313CDC
Triadic#DC3191, #91DC31
Split complementary#DC313C, #DCD231
Tetradic#D131DC, #DC7C31, #3BDC31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DFEEFA
Lighter +30%#B4D7F2
Lighter +20%#88C0EB
Lighter +10%#5DA8E3
Darker −10%#2076BA
Darker −20%#185B8F
Darker −30%#113F63
Darker −40%#092338
More saturated +25%#1395FA
Less saturated −25%#4F8DBE

Channel breakdown

R49
G145
B220
Red49 (19.2%)
Green145 (56.9%)
Blue220 (86.3%)
Hue206.32°
Saturation (HSL)70.95%
Lightness52.75%
Dominant channelBlue
Hex per channelR 31 · G 91 · B DC

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Every value on this page was computed from “3191dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.