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Colour

#3F00AB

  • #3F00AB
  • Violet
  • Dark
  • Nearest: Dark blue

#3F00AB is a violet with RGB values 63, 0, 171 and HSL 262°, 100%, 34%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3F00AB#3F00AB
HEX#3F00AB
RGBrgb(63, 0, 171)
RGB (0–1)0.2471, 0, 0.6706
RGB percentages24.7%, 0%, 67.1%
HSLhsl(262.1, 100%, 33.5%)
HSV / HSBhsv(262.1, 100%, 67.1%)
CMYK63.2%, 100%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,128,939
CSS custom property--colour: #3F00AB;

Brightness & contrast

Relative luminance0.03997WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.67:1
Contrast with white11.67:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#C0FF54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003DAFno red cones; affects about 1% of men; ΔE 31.4 from the original
Deuteranopia#0033A8no green cones; the most common form, about 1% of men; ΔE 26.8 from the original
Tritanopia#004363no blue cones; rare, and affects men and women equally; ΔE 82.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.67:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark blue · ΔE 14.1Navy · ΔE 18.8Medium blue · ΔE 19.4Blue violet · ΔE 20.9Indigo · ΔE 22.1Dark violet · ΔE 22.8
Nearest named CSS colourDark blue (#00008B)ΔE 14.09, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6CAB00
Analogous#0016AB, #9500AB
Triadic#AB3F00, #00AB3F
Split complementary#AB9400, #16AB00
Tetradic#AB0016, #6CAB00, #00AB95

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AA78FF
Lighter +30%#8A45FF
Lighter +20%#6912FF
Lighter +10%#5200DE
Darker −10%#2C0078
Darker −20%#190045
Darker −30%#070012
Darker −40%#000000
More saturated +25%#3F00AB
Less saturated −25%#451596

Channel breakdown

R63
G0
B171
Red63 (24.7%)
Green0 (0%)
Blue171 (67.1%)
Hue262.11°
Saturation (HSL)100%
Lightness33.53%
Dominant channelBlue
Hex per channelR 3F · G 00 · B AB

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Every value on this page was computed from “3f00ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.