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Recognised as Colour

#4757D7

  • #4757D7
  • Blue
  • Dark
  • Nearest: Royal blue

#4757D7 is a blue with RGB values 71, 87, 215 and HSL 233°, 64%, 56%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#4757D7#4757D7
HEX#4757D7
RGBrgb(71, 87, 215)
RGB (0–1)0.2784, 0.3412, 0.8431
RGB percentages27.8%, 34.1%, 84.3%
HSLhsl(233.3, 64.3%, 56.1%)
HSV / HSBhsv(233.3, 67%, 84.3%)
CMYK67%, 59.5%, 0%, 15.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,675,543
CSS custom property--colour: #4757D7;

Brightness & contrast

Relative luminance0.13062WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.81:1
Contrast with white5.81:1WCAG normal text: AA
Contrast with black3.61:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#B8A828

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006CDBno red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#005FD4no green cones; the most common form, about 1% of men; ΔE 11.9 from the original
Tritanopia#00778Fno blue cones; rare, and affects men and women equally; ΔE 71.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.81:1WCAG large text: AAA
Contrast with black, large text3.61:1WCAG large text: AA

Named colours

Royal blue · ΔE 10.2Slate blue · ΔE 10.2Medium slateblue · ΔE 11.4Medium purple · ΔE 21.4Rebecca purple · ΔE 24.2Dark slateblue · ΔE 29.6
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D7C747
Analogous#479FD7, #7F47D7
Triadic#D74757, #57D747
Split complementary#D77F47, #9FD747
Tetradic#D7479F, #D7C747, #47D77F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF0FB
Lighter +30%#C5CAF2
Lighter +20%#9BA3E9
Lighter +10%#717DE0
Darker −10%#2A3BC1
Darker −20%#212E97
Darker −30%#18216D
Darker −40%#0F1443
More saturated +25%#2B41F3
Less saturated −25%#636DBB

Channel breakdown

R71
G87
B215
Red71 (27.8%)
Green87 (34.1%)
Blue215 (84.3%)
Hue233.33°
Saturation (HSL)64.29%
Lightness56.08%
Dominant channelBlue
Hex per channelR 47 · G 57 · B D7

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Every value on this page was computed from “4757d7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.