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Recognised as Colour

#3580FE

  • #3580FE
  • Blue
  • Dark
  • Nearest: Royal blue

#3580FE is a blue with RGB values 53, 128, 254 and HSL 218°, 99%, 60%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#3580FE#3580FE
HEX#3580FE
RGBrgb(53, 128, 254)
RGB (0–1)0.2078, 0.502, 0.9961
RGB percentages20.8%, 50.2%, 99.6%
HSLhsl(217.6, 99%, 60.2%)
HSV / HSBhsv(217.6, 79.1%, 99.6%)
CMYK79.1%, 49.6%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,506,430
CSS custom property--colour: #3580FE;

Brightness & contrast

Relative luminance0.23351WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.67:1
Contrast with white3.7:1WCAG normal text: Fail
Contrast with black5.67:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#CA7F01

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#308EFFno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#007CFCno green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#009FB3no blue cones; rare, and affects men and women equally; ΔE 69 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.7:1WCAG large text: AA
Contrast with black, large text5.67:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10Dodgerblue · ΔE 13.2Medium slateblue · ΔE 20.6Slate blue · ΔE 21.3Cornflower blue · ΔE 24Medium purple · ΔE 24.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.99, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEB335
Analogous#35E4FE, #4F35FE
Triadic#FE3580, #80FE35
Split complementary#FE4F35, #E4FE35
Tetradic#FE35E4, #FEB335, #35FE4F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#CDE0FF
Lighter +20%#9AC0FF
Lighter +10%#68A0FE
Darker −10%#0260FE
Darker −20%#014DCC
Darker −30%#013A99
Darker −40%#012766
More saturated +25%#3480FF
Less saturated −25%#4E86E5

Channel breakdown

R53
G128
B254
Red53 (20.8%)
Green128 (50.2%)
Blue254 (99.6%)
Hue217.61°
Saturation (HSL)99.01%
Lightness60.2%
Dominant channelBlue
Hex per channelR 35 · G 80 · B FE

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Every value on this page was computed from “3580fe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.