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Recognised as Colour

#453FBB

  • #453FBB
  • Blue
  • Dark
  • Nearest: Slate blue

#453FBB is a blue with RGB values 69, 63, 187 and HSL 243°, 50%, 49%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#453FBB#453FBB
HEX#453FBB
RGBrgb(69, 63, 187)
RGB (0–1)0.2706, 0.2471, 0.7333
RGB percentages27.1%, 24.7%, 73.3%
HSLhsl(242.9, 49.6%, 49%)
HSV / HSBhsv(242.9, 66.3%, 73.3%)
CMYK63.1%, 66.3%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,538,299
CSS custom property--colour: #453FBB;

Brightness & contrast

Relative luminance0.08408WCAG 2.x, 0 is black and 1 is white
Perceived brightness88 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.83:1
Contrast with white7.83:1WCAG normal text: AAA
Contrast with black2.68:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#BAC044

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057BFno red cones; affects about 1% of men; ΔE 20.8 from the original
Deuteranopia#004DB9no green cones; the most common form, about 1% of men; ΔE 15.9 from the original
Tritanopia#005F77no blue cones; rare, and affects men and women equally; ΔE 70.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.83:1WCAG large text: AAA
Contrast with black, large text2.68:1WCAG large text: Fail

Named colours

Slate blue · ΔE 13.1Medium slateblue · ΔE 17.4Rebecca purple · ΔE 17.7Royal blue · ΔE 18.9Indigo · ΔE 21.7Dark blue · ΔE 23
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 13.08, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B5BB3F
Analogous#3F77BB, #833FBB
Triadic#BB453F, #3FBB45
Split complementary#BB833F, #77BB3F
Tetradic#BB3F77, #B5BB3F, #3FBB83

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6D5F1
Lighter +30%#B2AFE4
Lighter +20%#8D89D7
Lighter +10%#6863CA
Darker −10%#373295
Darker −20%#29256F
Darker −30%#1B1849
Darker −40%#0D0C22
More saturated +25%#2920DA
Less saturated −25%#615E9C

Channel breakdown

R69
G63
B187
Red69 (27.1%)
Green63 (24.7%)
Blue187 (73.3%)
Hue242.9°
Saturation (HSL)49.6%
Lightness49.02%
Dominant channelBlue
Hex per channelR 45 · G 3F · B BB

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Every value on this page was computed from “453fbb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.