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Recognised as Colour

#579FFF

  • #579FFF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#579FFF is a blue with RGB values 87, 159, 255 and HSL 214°, 100%, 67%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#579FFF#579FFF
HEX#579FFF
RGBrgb(87, 159, 255)
RGB (0–1)0.3412, 0.6235, 1
RGB percentages34.1%, 62.4%, 100%
HSLhsl(214.3, 100%, 67.1%)
HSV / HSBhsv(214.3, 65.9%, 100%)
CMYK65.9%, 37.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,742,591
CSS custom property--colour: #579FFF;

Brightness & contrast

Relative luminance0.34043WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.81:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.81:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#A86000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#74A6FFno red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#5B97FDno green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#00B5C3no blue cones; rare, and affects men and women equally; ΔE 54 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.81:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 6.3Dodgerblue · ΔE 11Steel blue · ΔE 27.8Royal blue · ΔE 27.9Deep skyblue · ΔE 28.5Medium purple · ΔE 31.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 6.3, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFB757
Analogous#57F3FF, #6357FF
Triadic#FF579F, #9FFF57
Split complementary#FF6357, #F3FF57
Tetradic#FF57F3, #FFB757, #57FF63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F0F6FF
Lighter +20%#BDD9FF
Lighter +10%#8ABCFF
Darker −10%#2482FF
Darker −20%#0067F0
Darker −30%#0051BD
Darker −40%#003B8A
More saturated +25%#579FFF
Less saturated −25%#6CA2EA

Channel breakdown

R87
G159
B255
Red87 (34.1%)
Green159 (62.4%)
Blue255 (100%)
Hue214.29°
Saturation (HSL)100%
Lightness67.06%
Dominant channelBlue
Hex per channelR 57 · G 9F · B FF

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Every value on this page was computed from “579fff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.