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Recognised as Colour

#649EBB

  • #649EBB
  • Blue
  • Dark
  • Nearest: Light slate grey

#649EBB is a blue with RGB values 100, 158, 187 and HSL 200°, 39%, 56%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Light slate grey.

Colour values

#649EBB#649EBB
HEX#649EBB
RGBrgb(100, 158, 187)
RGB (0–1)0.3922, 0.6196, 0.7333
RGB percentages39.2%, 62%, 73.3%
HSLhsl(200, 39%, 56.3%)
HSV / HSBhsv(200, 46.5%, 73.3%)
CMYK46.5%, 15.5%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,594,235
CSS custom property--colour: #649EBB;

Brightness & contrast

Relative luminance0.30751WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.15:1
Contrast with white2.94:1WCAG normal text: Fail
Contrast with black7.15:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#9B6144

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#909CBCno red cones; affects about 1% of men; ΔE 14.3 from the original
Deuteranopia#8392BBno green cones; the most common form, about 1% of men; ΔE 15.5 from the original
Tritanopia#3CA6A7no blue cones; rare, and affects men and women equally; ΔE 21.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.94:1WCAG large text: Fail
Contrast with black, large text7.15:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 14.6Cadetblue · ΔE 16Steel blue · ΔE 16.5Slate grey · ΔE 16.6Sky blue · ΔE 17.3Light skyblue · ΔE 19
Nearest named CSS colourLight slate grey (#778899)ΔE 14.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB8164
Analogous#64BBAD, #6473BB
Triadic#BB649E, #9EBB64
Split complementary#BB6473, #BBAD64
Tetradic#AC64BB, #BB8164, #73BB64

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F2F7F9
Lighter +30%#CEE1EA
Lighter +20%#ABCADA
Lighter +10%#87B4CB
Darker −10%#4885A4
Darker −20%#386981
Darker −30%#294C5D
Darker −40%#192F3A
More saturated +25%#48A7D7
Less saturated −25%#80959F

Channel breakdown

R100
G158
B187
Red100 (39.2%)
Green158 (62%)
Blue187 (73.3%)
Hue200°
Saturation (HSL)39.01%
Lightness56.27%
Dominant channelBlue
Hex per channelR 64 · G 9E · B BB

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Every value on this page was computed from “649ebb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.