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Recognised as Colour

#3F00BC

  • #3F00BC
  • Violet
  • Dark
  • Nearest: Medium blue

#3F00BC is a violet with RGB values 63, 0, 188 and HSL 260°, 100%, 37%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#3F00BC#3F00BC
HEX#3F00BC
RGBrgb(63, 0, 188)
RGB (0–1)0.2471, 0, 0.7373
RGB percentages24.7%, 0%, 73.7%
HSLhsl(260.1, 100%, 36.9%)
HSV / HSBhsv(260.1, 100%, 73.7%)
CMYK66.5%, 100%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,128,956
CSS custom property--colour: #3F00BC;

Brightness & contrast

Relative luminance0.04688WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.84:1
Contrast with white10.84:1WCAG normal text: AAA
Contrast with black1.94:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#C0FF43

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0043C0no red cones; affects about 1% of men; ΔE 33.3 from the original
Deuteranopia#0037B9no green cones; the most common form, about 1% of men; ΔE 27.3 from the original
Tritanopia#004B6Dno blue cones; rare, and affects men and women equally; ΔE 89.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.84:1WCAG large text: AAA
Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11.9Blue violet · ΔE 18Dark violet · ΔE 20.6Dark blue · ΔE 21Navy · ΔE 26.1Dark orchid · ΔE 26.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.9, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7DBC00
Analogous#001FBC, #9D00BC
Triadic#BC3F00, #00BC3F
Split complementary#BC9D00, #1FBC00
Tetradic#BC001F, #7DBC00, #00BC9D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B189FF
Lighter +30%#8F56FF
Lighter +20%#6D23FF
Lighter +10%#5000EF
Darker −10%#2E0089
Darker −20%#1D0056
Darker −30%#0C0023
Darker −40%#000000
More saturated +25%#3F00BC
Less saturated −25%#4718A5

Channel breakdown

R63
G0
B188
Red63 (24.7%)
Green0 (0%)
Blue188 (73.7%)
Hue260.11°
Saturation (HSL)100%
Lightness36.86%
Dominant channelBlue
Hex per channelR 3F · G 00 · B BC

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Every value on this page was computed from “3f00bc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.