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Recognised as Colour

#599BFB

  • #599BFB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#599BFB is a blue with RGB values 89, 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

#599BFB#599BFB
HEX#599BFB
RGBrgb(89, 155, 251)
RGB (0–1)0.349, 0.6078, 0.9843
RGB percentages34.9%, 60.8%, 98.4%
HSLhsl(215.6, 95.3%, 66.7%)
HSV / HSBhsv(215.6, 64.5%, 98.4%)
CMYK64.5%, 38.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,872,635
CSS custom property--colour: #599BFB;

Brightness & contrast

Relative luminance0.32532WCAG 2.x, 0 is black and 1 is white
Perceived brightness153.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.51:1
Contrast with white2.8:1WCAG normal text: Fail
Contrast with black7.51:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#A66404

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#70A3FFno red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#5994F9no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#00B1BFno blue cones; rare, and affects men and women equally; ΔE 54.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.8:1WCAG large text: Fail
Contrast with black, large text7.51:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 5.2Dodgerblue · ΔE 10.4Royal blue · ΔE 26.4Steel blue · ΔE 27.6Deep skyblue · ΔE 29.8Medium purple · ΔE 30
Nearest named CSS colourCornflower blue (#6495ED)ΔE 5.21, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FBB959
Analogous#59ECFB, #6859FB
Triadic#FB599B, #9BFB59
Split complementary#FB6859, #ECFB59
Tetradic#FB59EC, #FBB959, #59FB68

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EEF5FF
Lighter +20%#BDD7FD
Lighter +10%#8BB9FC
Darker −10%#277DFA
Darker −20%#0662E8
Darker −30%#044DB7
Darker −40%#033885
More saturated +25%#559AFF
Less saturated −25%#6E9FE6

Channel breakdown

R89
G155
B251
Red89 (34.9%)
Green155 (60.8%)
Blue251 (98.4%)
Hue215.56°
Saturation (HSL)95.29%
Lightness66.67%
Dominant channelBlue
Hex per channelR 59 · G 9B · B FB

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Every value on this page was computed from “599bfb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.