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Recognised as Colour

#6580FE

  • #6580FE
  • Blue
  • Dark
  • Nearest: Royal blue

#6580FE is a blue with RGB values 101, 128, 254 and HSL 229°, 99%, 70%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#6580FE#6580FE
HEX#6580FE
RGBrgb(101, 128, 254)
RGB (0–1)0.3961, 0.502, 0.9961
RGB percentages39.6%, 50.2%, 99.6%
HSLhsl(229.4, 98.7%, 69.6%)
HSV / HSBhsv(229.4, 60.2%, 99.6%)
CMYK60.2%, 49.6%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,652,158
CSS custom property--colour: #6580FE;

Brightness & contrast

Relative luminance0.25361WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.07:1
Contrast with white3.46:1WCAG normal text: Fail
Contrast with black6.07:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#9A7F01

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B91FFno red cones; affects about 1% of men; ΔE 16.6 from the original
Deuteranopia#1583FBno green cones; the most common form, about 1% of men; ΔE 11.9 from the original
Tritanopia#009DB3no blue cones; rare, and affects men and women equally; ΔE 70 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.46:1WCAG large text: AA
Contrast with black, large text6.07:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.7Medium slateblue · ΔE 14.5Slate blue · ΔE 16.8Dodgerblue · ΔE 17.9Medium purple · ΔE 18.4Cornflower blue · ΔE 25.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.7, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEE365
Analogous#65CCFE, #9765FE
Triadic#FE6580, #80FE65
Split complementary#FE9765, #CCFE65
Tetradic#FE65CC, #FEE365, #65FE97

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FDFDFF
Lighter +20%#CAD4FF
Lighter +10%#98AAFE
Darker −10%#3256FE
Darker −20%#022EFB
Darker −30%#0124C9
Darker −40%#011B96
More saturated +25%#647FFF
Less saturated −25%#788DEB

Channel breakdown

R101
G128
B254
Red101 (39.6%)
Green128 (50.2%)
Blue254 (99.6%)
Hue229.41°
Saturation (HSL)98.71%
Lightness69.61%
Dominant channelBlue
Hex per channelR 65 · G 80 · B FE

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Every value on this page was computed from “6580fe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.