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Recognised as Colour

#455F91

  • #455F91
  • Blue
  • Dark
  • Nearest: Steel blue

#455F91 is a blue with RGB values 69, 95, 145 and HSL 219°, 36%, 42%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#455F91#455F91
HEX#455F91
RGBrgb(69, 95, 145)
RGB (0–1)0.2706, 0.3725, 0.5686
RGB percentages27.1%, 37.3%, 56.9%
HSLhsl(219.5, 35.5%, 42%)
HSV / HSBhsv(219.5, 52.4%, 56.9%)
CMYK52.4%, 34.5%, 0%, 43.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,546,449
CSS custom property--colour: #455F91;

Brightness & contrast

Relative luminance0.11494WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.37:1
Contrast with white6.37:1WCAG normal text: AA
Contrast with black3.3:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#BAA06E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C6393no red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#435C90no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#216A71no blue cones; rare, and affects men and women equally; ΔE 32 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.37:1WCAG large text: AAA
Contrast with black, large text3.3:1WCAG large text: AA

Named colours

Steel blue · ΔE 15.4Slate grey · ΔE 24.7Dark slateblue · ΔE 25.6Light slate grey · ΔE 26Cornflower blue · ΔE 28.8Dim grey · ΔE 31.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.38, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#917745
Analogous#458591, #514591
Triadic#91455F, #5F9145
Split complementary#915145, #859145
Tetradic#914585, #917745, #459151

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1CCE1
Lighter +30%#9EAFD1
Lighter +20%#7C93C0
Lighter +10%#5977B0
Darker −10%#35486E
Darker −20%#24324C
Darker −30%#141B29
Darker −40%#030407
More saturated +25%#2A57AC
Less saturated −25%#606776

Channel breakdown

R69
G95
B145
Red69 (27.1%)
Green95 (37.3%)
Blue145 (56.9%)
Hue219.47°
Saturation (HSL)35.51%
Lightness41.96%
Dominant channelBlue
Hex per channelR 45 · G 5F · B 91

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Every value on this page was computed from “455f91” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.