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Recognised as Colour

#64789D

  • #64789D
  • Blue
  • Dark
  • Nearest: Steel blue

#64789D is a blue with RGB values 100, 120, 157 and HSL 219°, 23%, 50%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#64789D#64789D
HEX#64789D
RGBrgb(100, 120, 157)
RGB (0–1)0.3922, 0.4706, 0.6157
RGB percentages39.2%, 47.1%, 61.6%
HSLhsl(218.9, 22.5%, 50.4%)
HSV / HSBhsv(218.9, 36.3%, 61.6%)
CMYK36.3%, 23.6%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,584,477
CSS custom property--colour: #64789D;

Brightness & contrast

Relative luminance0.18577WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.72:1
Contrast with white4.45:1WCAG normal text: Fail
Contrast with black4.72:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#9B8762

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B7A9Fno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#66759Cno green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#528085no blue cones; rare, and affects men and women equally; ΔE 22 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.45:1WCAG large text: AA
Contrast with black, large text4.72:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.9Slate grey · ΔE 12.7Light slate grey · ΔE 13.3Gray · ΔE 22.6Dim grey · ΔE 23.1Cadetblue · ΔE 28.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 11.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D8964
Analogous#64949D, #6D649D
Triadic#9D6478, #789D64
Split complementary#9D6D64, #949D64
Tetradic#9D6494, #9D8964, #649D6D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1E5EC
Lighter +30%#C2CAD8
Lighter +20%#A2AEC5
Lighter +10%#8393B1
Darker −10%#50607E
Darker −20%#3C485F
Darker −30%#283140
Darker −40%#151920
More saturated +25%#446FBD
Less saturated −25%#818181

Channel breakdown

R100
G120
B157
Red100 (39.2%)
Green120 (47.1%)
Blue157 (61.6%)
Hue218.95°
Saturation (HSL)22.53%
Lightness50.39%
Dominant channelBlue
Hex per channelR 64 · G 78 · B 9D

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Every value on this page was computed from “64789d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.