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Recognised as Colour

#477FD8

  • #477FD8
  • Blue
  • Dark
  • Nearest: Cornflower blue

#477FD8 is a blue with RGB values 71, 127, 216 and HSL 217°, 65%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#477FD8#477FD8
HEX#477FD8
RGBrgb(71, 127, 216)
RGB (0–1)0.2784, 0.498, 0.8471
RGB percentages27.8%, 49.8%, 84.7%
HSLhsl(216.8, 65%, 56.3%)
HSV / HSBhsv(216.8, 67.1%, 84.7%)
CMYK67.1%, 41.2%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,685,784
CSS custom property--colour: #477FD8;

Brightness & contrast

Relative luminance0.21476WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.3:1
Contrast with white3.97:1WCAG normal text: Fail
Contrast with black5.3:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#B88027

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5687DBno red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#3F7AD6no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#0094A1no blue cones; rare, and affects men and women equally; ΔE 51.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.97:1WCAG large text: AA
Contrast with black, large text5.3:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.7Dodgerblue · ΔE 13.6Royal blue · ΔE 22.1Steel blue · ΔE 23.8Medium purple · ΔE 26.6Slate blue · ΔE 27.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.7, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8A047
Analogous#47C8D8, #5747D8
Triadic#D8477F, #7FD847
Split complementary#D85847, #C7D847
Tetradic#D847C8, #D8A047, #47D858

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF4FC
Lighter +30%#C5D7F3
Lighter +20%#9BBAEA
Lighter +10%#719CE1
Darker −10%#2965C3
Darker −20%#204F99
Darker −30%#17396F
Darker −40%#0F2344
More saturated +25%#2B79F4
Less saturated −25%#6385BC

Channel breakdown

R71
G127
B216
Red71 (27.8%)
Green127 (49.8%)
Blue216 (84.7%)
Hue216.83°
Saturation (HSL)65.02%
Lightness56.27%
Dominant channelBlue
Hex per channelR 47 · G 7F · B D8

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Every value on this page was computed from “477fd8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.