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Recognised as Colour

#455D91

  • #455D91
  • Blue
  • Dark
  • Nearest: Steel blue

#455D91 is a blue with RGB values 69, 93, 145 and HSL 221°, 36%, 42%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#455D91#455D91
HEX#455D91
RGBrgb(69, 93, 145)
RGB (0–1)0.2706, 0.3647, 0.5686
RGB percentages27.1%, 36.5%, 56.9%
HSLhsl(221.1, 35.5%, 42%)
HSV / HSBhsv(221.1, 52.4%, 56.9%)
CMYK52.4%, 35.9%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,545,937
CSS custom property--colour: #455D91;

Brightness & contrast

Relative luminance0.11138WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.51:1
Contrast with white6.51:1WCAG normal text: AA
Contrast with black3.23:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#BAA26E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#496293no red cones; affects about 1% of men; ΔE 2.9 from the original
Deuteranopia#405B90no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#226870no blue cones; rare, and affects men and women equally; ΔE 32.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.51:1WCAG large text: AAA
Contrast with black, large text3.23:1WCAG large text: AA

Named colours

Steel blue · ΔE 16.6Dark slateblue · ΔE 23.9Slate grey · ΔE 26.1Light slate grey · ΔE 27.4Cornflower blue · ΔE 28.6Dim grey · ΔE 32.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 16.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#917945
Analogous#458391, #534591
Triadic#91455D, #5D9145
Split complementary#915345, #839145
Tetradic#914583, #917945, #459153

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1CBE1
Lighter +30%#9EAED1
Lighter +20%#7C91C0
Lighter +10%#5974B0
Darker −10%#35476E
Darker −20%#24314C
Darker −30%#141B29
Darker −40%#030407
More saturated +25%#2A53AC
Less saturated −25%#606776

Channel breakdown

R69
G93
B145
Red69 (27.1%)
Green93 (36.5%)
Blue145 (56.9%)
Hue221.05°
Saturation (HSL)35.51%
Lightness41.96%
Dominant channelBlue
Hex per channelR 45 · G 5D · B 91

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Every value on this page was computed from “455d91” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.