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Recognised as Colour

#6577F5

  • #6577F5
  • Blue
  • Dark
  • Nearest: Royal blue

#6577F5 is a blue with RGB values 101, 119, 245 and HSL 233°, 88%, 68%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#6577F5#6577F5
HEX#6577F5
RGBrgb(101, 119, 245)
RGB (0–1)0.3961, 0.4667, 0.9608
RGB percentages39.6%, 46.7%, 96.1%
HSLhsl(232.5, 87.8%, 67.8%)
HSV / HSBhsv(232.5, 58.8%, 96.1%)
CMYK58.8%, 51.4%, 0%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,649,845
CSS custom property--colour: #6577F5;

Brightness & contrast

Relative luminance0.22553WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.51:1
Contrast with white3.81:1WCAG normal text: Fail
Contrast with black5.51:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#9A880A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E89F9no red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#007DF2no green cones; the most common form, about 1% of men; ΔE 14.6 from the original
Tritanopia#0094ABno blue cones; rare, and affects men and women equally; ΔE 70.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.81:1WCAG large text: AA
Contrast with black, large text5.51:1WCAG large text: AAA

Named colours

Royal blue · ΔE 7.8Medium slateblue · ΔE 11.3Slate blue · ΔE 13.4Medium purple · ΔE 16.7Dodgerblue · ΔE 20.8Cornflower blue · ΔE 27.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.78, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F5E365
Analogous#65BFF5, #9B65F5
Triadic#F56577, #77F565
Split complementary#F59B65, #BFF565
Tetradic#F565BF, #F5E365, #65F59B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F5F6FE
Lighter +20%#C5CCFB
Lighter +10%#95A1F8
Darker −10%#354DF2
Darker −20%#0F2AE5
Darker −30%#0C21B5
Darker −40%#091885
More saturated +25%#5B70FF
Less saturated −25%#7A86E1

Channel breakdown

R101
G119
B245
Red101 (39.6%)
Green119 (46.7%)
Blue245 (96.1%)
Hue232.5°
Saturation (HSL)87.8%
Lightness67.84%
Dominant channelBlue
Hex per channelR 65 · G 77 · B F5

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Every value on this page was computed from “6577f5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.