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Recognised as Colour

#3863B3

  • #3863B3
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3863B3 is a blue with RGB values 56, 99, 179 and HSL 219°, 52%, 46%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3863B3#3863B3
HEX#3863B3
RGBrgb(56, 99, 179)
RGB (0–1)0.2196, 0.3882, 0.702
RGB percentages22%, 38.8%, 70.2%
HSLhsl(219, 52.3%, 46.1%)
HSV / HSBhsv(219, 68.7%, 70.2%)
CMYK68.7%, 44.7%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,695,539
CSS custom property--colour: #3863B3;

Brightness & contrast

Relative luminance0.13019WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.83:1
Contrast with white5.83:1WCAG normal text: AA
Contrast with black3.6:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#C79C4C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3C6BB6no red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#2660B1no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#007682no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.83:1WCAG large text: AAA
Contrast with black, large text3.6:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 19Cornflower blue · ΔE 19.5Dodgerblue · ΔE 23.4Royal blue · ΔE 23.7Steel blue · ΔE 23.9Slate blue · ΔE 26.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B38838
Analogous#38A1B3, #4A38B3
Triadic#B33863, #63B338
Split complementary#B34A38, #A1B338
Tetradic#B338A1, #B38838, #38B34A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C9D6EE
Lighter +30%#A2B8E2
Lighter +20%#7B9BD6
Lighter +10%#547DCA
Darker −10%#2C4E8C
Darker −20%#203865
Darker −30%#14233E
Darker −40%#070D18
More saturated +25%#1B5AD0
Less saturated −25%#556C96

Channel breakdown

R56
G99
B179
Red56 (22%)
Green99 (38.8%)
Blue179 (70.2%)
Hue219.02°
Saturation (HSL)52.34%
Lightness46.08%
Dominant channelBlue
Hex per channelR 38 · G 63 · B B3

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Every value on this page was computed from “3863b3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.