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Recognised as Colour

#4580D5

  • #4580D5
  • Blue
  • Dark
  • Nearest: Cornflower blue

#4580D5 is a blue with RGB values 69, 128, 213 and HSL 215°, 63%, 55%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4580D5#4580D5
HEX#4580D5
RGBrgb(69, 128, 213)
RGB (0–1)0.2706, 0.502, 0.8353
RGB percentages27.1%, 50.2%, 83.5%
HSLhsl(215.4, 63.2%, 55.3%)
HSV / HSBhsv(215.4, 67.6%, 83.5%)
CMYK67.6%, 39.9%, 0%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,554,965
CSS custom property--colour: #4580D5;

Brightness & contrast

Relative luminance0.21508WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.3:1
Contrast with white3.96:1WCAG normal text: Fail
Contrast with black5.3:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#BA7F2A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5987D8no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#437AD3no green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#0094A0no blue cones; rare, and affects men and women equally; ΔE 49.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.96:1WCAG large text: AA
Contrast with black, large text5.3:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.5Dodgerblue · ΔE 15.3Steel blue · ΔE 21.2Royal blue · ΔE 24.7Medium purple · ΔE 28.6Dark slateblue · ΔE 29.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.5, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D59A45
Analogous#45C8D5, #5245D5
Triadic#D54580, #80D545
Split complementary#D55245, #C8D545
Tetradic#D545C8, #D59A45, #45D552

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF2FB
Lighter +30%#C2D5F1
Lighter +20%#98B9E8
Lighter +10%#6F9CDE
Darker −10%#2B66BC
Darker −20%#215093
Darker −30%#183969
Darker −40%#0E2340
More saturated +25%#297BF2
Less saturated −25%#6285B9

Channel breakdown

R69
G128
B213
Red69 (27.1%)
Green128 (50.2%)
Blue213 (83.5%)
Hue215.42°
Saturation (HSL)63.16%
Lightness55.29%
Dominant channelBlue
Hex per channelR 45 · G 80 · B D5

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Every value on this page was computed from “4580d5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.