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Recognised as Colour

#473B74

  • #473B74
  • Blue
  • Dark
  • Nearest: Dark slateblue

#473B74 is a blue with RGB values 71, 59, 116 and HSL 253°, 33%, 34%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#473B74#473B74
HEX#473B74
RGBrgb(71, 59, 116)
RGB (0–1)0.2784, 0.2314, 0.4549
RGB percentages27.8%, 23.1%, 45.5%
HSLhsl(252.6, 32.6%, 34.3%)
HSV / HSBhsv(252.6, 49.1%, 45.5%)
CMYK38.8%, 49.1%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,668,276
CSS custom property--colour: #473B74;

Brightness & contrast

Relative luminance0.05728WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.79:1
Contrast with white9.79:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#B8C48B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#274576no red cones; affects about 1% of men; ΔE 14 from the original
Deuteranopia#284373no green cones; the most common form, about 1% of men; ΔE 13.6 from the original
Tritanopia#3C4652no blue cones; rare, and affects men and women equally; ΔE 30.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.79:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.7Midnight blue · ΔE 25.4Rebecca purple · ΔE 28.3Steel blue · ΔE 33.8Slate blue · ΔE 35.3Medium purple · ΔE 36.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#68743B
Analogous#3B4B74, #643B74
Triadic#74473B, #3B7447
Split complementary#74643B, #4B743B
Tetradic#743B4B, #68743B, #3B7464

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B1A8D3
Lighter +30%#9386C2
Lighter +20%#7565B0
Lighter +10%#5C4C96
Darker −10%#322A52
Darker −20%#1E1930
Darker −30%#09070F
Darker −40%#000000
More saturated +25%#3A258A
Less saturated −25%#54515E

Channel breakdown

R71
G59
B116
Red71 (27.8%)
Green59 (23.1%)
Blue116 (45.5%)
Hue252.63°
Saturation (HSL)32.57%
Lightness34.31%
Dominant channelBlue
Hex per channelR 47 · G 3B · B 74

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Every value on this page was computed from “473b74” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.