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Recognised as Colour

#4580B6

  • #4580B6
  • Blue
  • Dark
  • Nearest: Steel blue

#4580B6 is a blue with RGB values 69, 128, 182 and HSL 209°, 45%, 49%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4580B6#4580B6
HEX#4580B6
RGBrgb(69, 128, 182)
RGB (0–1)0.2706, 0.502, 0.7137
RGB percentages27.1%, 50.2%, 71.4%
HSLhsl(208.7, 45%, 49.2%)
HSV / HSBhsv(208.7, 62.1%, 71.4%)
CMYK62.1%, 29.7%, 0%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,554,934
CSS custom property--colour: #4580B6;

Brightness & contrast

Relative luminance0.20081WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.02:1
Contrast with white4.19:1WCAG normal text: Fail
Contrast with black5.02:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#BA7F49

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6982B8no red cones; affects about 1% of men; ΔE 8.7 from the original
Deuteranopia#5977B5no green cones; the most common form, about 1% of men; ΔE 9.7 from the original
Tritanopia#008D93no blue cones; rare, and affects men and women equally; ΔE 34.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.19:1WCAG large text: AA
Contrast with black, large text5.02:1WCAG large text: AAA

Named colours

Steel blue · ΔE 2.6Cornflower blue · ΔE 21.6Light slate grey · ΔE 23.4Slate grey · ΔE 23.6Deep skyblue · ΔE 27Light skyblue · ΔE 29.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 2.64, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B67B45
Analogous#45B6B3, #4548B6
Triadic#B64580, #80B645
Split complementary#B64548, #B6B345
Tetradic#B345B6, #B67B45, #48B645

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7E4F0
Lighter +30%#B2CBE2
Lighter +20%#8DB2D4
Lighter +10%#6899C6
Darker −10%#376691
Darker −20%#294C6C
Darker −30%#1B3247
Darker −40%#0D1822
More saturated +25%#2681D5
Less saturated −25%#647F97

Channel breakdown

R69
G128
B182
Red69 (27.1%)
Green128 (50.2%)
Blue182 (71.4%)
Hue208.67°
Saturation (HSL)45.02%
Lightness49.22%
Dominant channelBlue
Hex per channelR 45 · G 80 · B B6

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Every value on this page was computed from “4580b6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.