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Recognised as Colour

#475AA3

  • #475AA3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#475AA3 is a blue with RGB values 71, 90, 163 and HSL 228°, 39%, 46%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#475AA3#475AA3
HEX#475AA3
RGBrgb(71, 90, 163)
RGB (0–1)0.2784, 0.3529, 0.6392
RGB percentages27.8%, 35.3%, 63.9%
HSLhsl(227.6, 39.3%, 45.9%)
HSV / HSBhsv(227.6, 56.4%, 63.9%)
CMYK56.4%, 44.8%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,676,259
CSS custom property--colour: #475AA3;

Brightness & contrast

Relative luminance0.11296WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.44:1
Contrast with white6.44:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#B8A55C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A63A6no red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#2E5BA1no green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#116A76no blue cones; rare, and affects men and women equally; ΔE 44.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.44:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 14.4Cornflower blue · ΔE 23.8Steel blue · ΔE 24.7Slate blue · ΔE 26.9Royal blue · ΔE 27.1Medium purple · ΔE 27.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.4, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A39047
Analogous#4788A3, #6247A3
Triadic#A3475A, #5AA347
Split complementary#A36247, #88A347
Tetradic#A34788, #A39047, #47A362

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDD3E9
Lighter +30%#A9B3DA
Lighter +20%#8694CA
Lighter +10%#6275BB
Darker −10%#38467F
Darker −20%#28335C
Darker −30%#191F38
Darker −40%#090C15
More saturated +25%#2A49C0
Less saturated −25%#646B86

Channel breakdown

R71
G90
B163
Red71 (27.8%)
Green90 (35.3%)
Blue163 (63.9%)
Hue227.61°
Saturation (HSL)39.32%
Lightness45.88%
Dominant channelBlue
Hex per channelR 47 · G 5A · B A3

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Every value on this page was computed from “475aa3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.