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Recognised as Colour

#647EBD

  • #647EBD
  • Blue
  • Dark
  • Nearest: Steel blue

#647EBD is a blue with RGB values 100, 126, 189 and HSL 222°, 40%, 57%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#647EBD#647EBD
HEX#647EBD
RGBrgb(100, 126, 189)
RGB (0–1)0.3922, 0.4941, 0.7412
RGB percentages39.2%, 49.4%, 74.1%
HSLhsl(222.5, 40.3%, 56.7%)
HSV / HSBhsv(222.5, 47.1%, 74.1%)
CMYK47.1%, 33.3%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,586,045
CSS custom property--colour: #647EBD;

Brightness & contrast

Relative luminance0.21305WCAG 2.x, 0 is black and 1 is white
Perceived brightness128 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.26:1
Contrast with white3.99:1WCAG normal text: Fail
Contrast with black5.26:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#9B8142

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6784C0no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#5D7CBCno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#418B95no blue cones; rare, and affects men and women equally; ΔE 36.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.99:1WCAG large text: AA
Contrast with black, large text5.26:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.6Cornflower blue · ΔE 16Light slate grey · ΔE 27Slate grey · ΔE 27.3Dodgerblue · ΔE 28.2Dark slateblue · ΔE 29.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BDA364
Analogous#64ABBD, #7664BD
Triadic#BD647E, #7EBD64
Split complementary#BD7664, #ABBD64
Tetradic#BD64AB, #BDA364, #64BD76

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3F5FA
Lighter +30%#CFD7EB
Lighter +20%#ACBADB
Lighter +10%#889CCC
Darker −10%#4763A7
Darker −20%#384E83
Darker −30%#29395F
Darker −40%#19233C
More saturated +25%#4873D9
Less saturated −25%#8089A1

Channel breakdown

R100
G126
B189
Red100 (39.2%)
Green126 (49.4%)
Blue189 (74.1%)
Hue222.47°
Saturation (HSL)40.27%
Lightness56.67%
Dominant channelBlue
Hex per channelR 64 · G 7E · B BD

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Every value on this page was computed from “647ebd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.