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Recognised as Colour

#6561C7

  • #6561C7
  • Blue
  • Dark
  • Nearest: Slate blue

#6561C7 is a blue with RGB values 101, 97, 199 and HSL 242°, 48%, 58%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#6561C7#6561C7
HEX#6561C7
RGBrgb(101, 97, 199)
RGB (0–1)0.3961, 0.3804, 0.7804
RGB percentages39.6%, 38%, 78%
HSLhsl(242.4, 47.7%, 58%)
HSV / HSBhsv(242.4, 51.3%, 78%)
CMYK49.2%, 51.3%, 0%, 22%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,644,167
CSS custom property--colour: #6561C7;

Brightness & contrast

Relative luminance0.1544WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.14:1
Contrast with white5.14:1WCAG normal text: AA
Contrast with black4.09:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#9A9E38

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F71CBno red cones; affects about 1% of men; ΔE 18.1 from the original
Deuteranopia#276AC5no green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#41778Bno blue cones; rare, and affects men and women equally; ΔE 54.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.14:1WCAG large text: AAA
Contrast with black, large text4.09:1WCAG large text: AA

Named colours

Slate blue · ΔE 8.7Medium purple · ΔE 12.1Royal blue · ΔE 12.7Medium slateblue · ΔE 18.4Dark slateblue · ΔE 19Rebecca purple · ΔE 20.2
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 8.68, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C3C761
Analogous#6190C7, #9861C7
Triadic#C76561, #61C765
Split complementary#C79861, #90C761
Tetradic#C76190, #C3C761, #61C798

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F8F8FC
Lighter +30%#D3D2EF
Lighter +20%#AEACE2
Lighter +10%#8A87D4
Darker −10%#4540B5
Darker −20%#36338F
Darker −30%#28256A
Darker −40%#1A1844
More saturated +25%#4C46E2
Less saturated −25%#7E7CAC

Channel breakdown

R101
G97
B199
Red101 (39.6%)
Green97 (38%)
Blue199 (78%)
Hue242.35°
Saturation (HSL)47.66%
Lightness58.04%
Dominant channelBlue
Hex per channelR 65 · G 61 · B C7

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Every value on this page was computed from “6561c7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.