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Recognised as Colour

#5164B2

  • #5164B2
  • Blue
  • Dark
  • Nearest: Dark slateblue

#5164B2 is a blue with RGB values 81, 100, 178 and HSL 228°, 39%, 51%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#5164B2#5164B2
HEX#5164B2
RGBrgb(81, 100, 178)
RGB (0–1)0.3176, 0.3922, 0.698
RGB percentages31.8%, 39.2%, 69.8%
HSLhsl(228.2, 38.6%, 50.8%)
HSV / HSBhsv(228.2, 54.5%, 69.8%)
CMYK54.5%, 43.8%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,334,194
CSS custom property--colour: #5164B2;

Brightness & contrast

Relative luminance0.14078WCAG 2.x, 0 is black and 1 is white
Perceived brightness107 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.5:1
Contrast with white5.5:1WCAG normal text: AA
Contrast with black3.82:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#AE9B4D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#436DB5no red cones; affects about 1% of men; ΔE 7.8 from the original
Deuteranopia#3765B0no green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#1F7582no blue cones; rare, and affects men and women equally; ΔE 46.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.5:1WCAG large text: AAA
Contrast with black, large text3.82:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 17Cornflower blue · ΔE 19.6Royal blue · ΔE 24.1Medium purple · ΔE 24.3Steel blue · ΔE 24.5Slate blue · ΔE 24.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B29F51
Analogous#5195B2, #6E51B2
Triadic#B25164, #64B251
Split complementary#B26E51, #95B251
Tetradic#B25194, #B29F51, #51B26E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEE2F1
Lighter +30%#BBC2E1
Lighter +20%#98A3D1
Lighter +10%#7483C2
Darker −10%#405090
Darker −20%#303C6D
Darker −30%#212949
Darker −40%#111526
More saturated +25%#3251D1
Less saturated −25%#707793

Channel breakdown

R81
G100
B178
Red81 (31.8%)
Green100 (39.2%)
Blue178 (69.8%)
Hue228.25°
Saturation (HSL)38.65%
Lightness50.78%
Dominant channelBlue
Hex per channelR 51 · G 64 · B B2

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Every value on this page was computed from “5164b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.