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Recognised as Colour

#4579FF

  • #4579FF
  • Blue
  • Dark
  • Nearest: Royal blue

#4579FF is a blue with RGB values 69, 121, 255 and HSL 223°, 100%, 64%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#4579FF#4579FF
HEX#4579FF
RGBrgb(69, 121, 255)
RGB (0–1)0.2706, 0.4745, 1
RGB percentages27.1%, 47.5%, 100%
HSLhsl(223.2, 100%, 63.5%)
HSV / HSBhsv(223.2, 72.9%, 100%)
CMYK72.9%, 52.5%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,553,215
CSS custom property--colour: #4579FF;

Brightness & contrast

Relative luminance0.2216WCAG 2.x, 0 is black and 1 is white
Perceived brightness132 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.43:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.43:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#BA8600

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#118BFFno red cones; affects about 1% of men; ΔE 16.6 from the original
Deuteranopia#0079FCno green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#009AB0no blue cones; rare, and affects men and women equally; ΔE 73.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.43:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.1Medium slateblue · ΔE 15.1Slate blue · ΔE 18.6Dodgerblue · ΔE 20.1Medium purple · ΔE 23.5Cornflower blue · ΔE 29.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.13, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFCB45
Analogous#45D6FF, #6E45FF
Triadic#FF4579, #79FF45
Split complementary#FF6E45, #D6FF45
Tetradic#FF45D6, #FFCB45, #45FF6E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DEE7FF
Lighter +20%#ABC2FF
Lighter +10%#789EFF
Darker −10%#1254FF
Darker −20%#003EDE
Darker −30%#0030AB
Darker −40%#002278
More saturated +25%#4579FF
Less saturated −25%#5C83E8

Channel breakdown

R69
G121
B255
Red69 (27.1%)
Green121 (47.5%)
Blue255 (100%)
Hue223.23°
Saturation (HSL)100%
Lightness63.53%
Dominant channelBlue
Hex per channelR 45 · G 79 · B FF

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Every value on this page was computed from “4579ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.