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Recognised as Colour

#474A8A

  • #474A8A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#474A8A is a blue with RGB values 71, 74, 138 and HSL 237°, 32%, 41%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#474A8A#474A8A
HEX#474A8A
RGBrgb(71, 74, 138)
RGB (0–1)0.2784, 0.2902, 0.5412
RGB percentages27.8%, 29%, 54.1%
HSLhsl(237.3, 32.1%, 41%)
HSV / HSBhsv(237.3, 48.6%, 54.1%)
CMYK48.6%, 46.4%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,672,138
CSS custom property--colour: #474A8A;

Brightness & contrast

Relative luminance0.08072WCAG 2.x, 0 is black and 1 is white
Perceived brightness83 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.03:1
Contrast with white8.03:1WCAG normal text: AAA
Contrast with black2.61:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#B8B575

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#30538Cno red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#2B4E89no green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#2F5763no blue cones; rare, and affects men and women equally; ΔE 37 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.03:1WCAG large text: AAA
Contrast with black, large text2.61:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.3Midnight blue · ΔE 27Rebecca purple · ΔE 28.1Steel blue · ΔE 28.2Slate blue · ΔE 30.9Cornflower blue · ΔE 31.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.27, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A8747
Analogous#476B8A, #66478A
Triadic#8A474A, #4A8A47
Split complementary#8A6647, #6C8A47
Tetradic#8A476B, #8A8747, #478A66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFC0DE
Lighter +30%#9D9FCD
Lighter +20%#7C7EBB
Lighter +10%#5A5EAA
Darker −10%#363868
Darker −20%#242647
Darker −30%#131425
Darker −40%#020203
More saturated +25%#2D32A4
Less saturated −25%#616270

Channel breakdown

R71
G74
B138
Red71 (27.8%)
Green74 (29%)
Blue138 (54.1%)
Hue237.31°
Saturation (HSL)32.06%
Lightness40.98%
Dominant channelBlue
Hex per channelR 47 · G 4A · B 8A

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Every value on this page was computed from “474a8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.