Nerdulator> put something in

Recognised as Colour

#5657AB

  • #5657AB
  • Blue
  • Dark
  • Nearest: Dark slateblue

#5657AB is a blue with RGB values 86, 87, 171 and HSL 239°, 34%, 50%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#5657AB#5657AB
HEX#5657AB
RGBrgb(86, 87, 171)
RGB (0–1)0.3373, 0.3412, 0.6706
RGB percentages33.7%, 34.1%, 67.1%
HSLhsl(239.3, 33.6%, 50.4%)
HSV / HSBhsv(239.3, 49.7%, 67.1%)
CMYK49.7%, 49.1%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,658,539
CSS custom property--colour: #5657AB;

Brightness & contrast

Relative luminance0.11735WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.27:1
Contrast with white6.27:1WCAG normal text: AA
Contrast with black3.35:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#A9A854

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3163AEno red cones; affects about 1% of men; ΔE 13.9 from the original
Deuteranopia#2A5DA9no green cones; the most common form, about 1% of men; ΔE 12.9 from the original
Tritanopia#366979no blue cones; rare, and affects men and women equally; ΔE 47 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.27:1WCAG large text: AAA
Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 10.9Slate blue · ΔE 18.6Medium purple · ΔE 20.4Royal blue · ΔE 21.4Rebecca purple · ΔE 21.5Cornflower blue · ΔE 25.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ABAA56
Analogous#5682AB, #7F56AB
Triadic#AB5657, #57AB56
Split complementary#AB8056, #82AB56
Tetradic#AB5682, #ABAA56, #56AB80

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEDEEF
Lighter +30%#BCBDDE
Lighter +20%#9A9BCD
Lighter +10%#7879BC
Darker −10%#44458A
Darker −20%#333468
Darker −30%#232345
Darker −40%#121223
More saturated +25%#3638CB
Less saturated −25%#76768B

Channel breakdown

R86
G87
B171
Red86 (33.7%)
Green87 (34.1%)
Blue171 (67.1%)
Hue239.29°
Saturation (HSL)33.6%
Lightness50.39%
Dominant channelBlue
Hex per channelR 56 · G 57 · B AB

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “5657ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.