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Recognised as Colour

#5B9BFB

  • #5B9BFB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5B9BFB is a blue with RGB values 91, 155, 251 and HSL 216°, 95%, 67%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#5B9BFB#5B9BFB
HEX#5B9BFB
RGBrgb(91, 155, 251)
RGB (0–1)0.3569, 0.6078, 0.9843
RGB percentages35.7%, 60.8%, 98.4%
HSLhsl(216, 95.2%, 67.1%)
HSV / HSBhsv(216, 63.7%, 98.4%)
CMYK63.7%, 38.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,003,707
CSS custom property--colour: #5B9BFB;

Brightness & contrast

Relative luminance0.32632WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.53:1
Contrast with white2.79:1WCAG normal text: Fail
Contrast with black7.53:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#A46404

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#70A3FFno red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#5994F9no green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#00B1BFno blue cones; rare, and affects men and women equally; ΔE 54.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.79:1WCAG large text: Fail
Contrast with black, large text7.53:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 5.1Dodgerblue · ΔE 10.5Royal blue · ΔE 26.3Steel blue · ΔE 27.7Medium purple · ΔE 29.7Deep skyblue · ΔE 30.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 5.07, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FBBB5B
Analogous#5BEBFB, #6B5BFB
Triadic#FB5B9B, #9BFB5B
Split complementary#FB6B5B, #EBFB5B
Tetradic#FB5BEB, #FBBB5B, #5BFB6B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F0F6FF
Lighter +20%#BFD8FD
Lighter +10%#8DB9FC
Darker −10%#297DFA
Darker −20%#0661EA
Darker −30%#054CB8
Darker −40%#033887
More saturated +25%#579AFF
Less saturated −25%#709FE6

Channel breakdown

R91
G155
B251
Red91 (35.7%)
Green155 (60.8%)
Blue251 (98.4%)
Hue216°
Saturation (HSL)95.24%
Lightness67.06%
Dominant channelBlue
Hex per channelR 5B · G 9B · B FB

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Every value on this page was computed from “5b9bfb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.