Recognised as Colour

#3F00A1

#3F00A1
Violet
Dark
Nearest: Dark blue

#3F00A1 is a violet with RGB values 63, 0, 161 and HSL 263°, 100%, 32%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3F00A1#3F00A1

HEX#3F00A1

RGBrgb(63, 0, 161)

RGB (0–1)0.2471, 0, 0.6314

RGB percentages24.7%, 0%, 63.1%

HSLhsl(263.5, 100%, 31.6%)

HSV / HSBhsv(263.5, 100%, 63.1%)

CMYK60.9%, 100%, 0%, 36.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,128,929

CSS custom property--colour: #3F00A1;

Brightness & contrast

Relative luminance0.0363WCAG 2.x, 0 is black and 1 is white

Perceived brightness64.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.17:1

Contrast with white12.17:1WCAG normal text: AAA

Contrast with black1.73:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#C0FF5E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0039A5no red cones; affects about 1% of men; ΔE 29.9 from the original

Deuteranopia#00319Fno green cones; the most common form, about 1% of men; ΔE 26.4 from the original

Tritanopia#003E5Dno blue cones; rare, and affects men and women equally; ΔE 77.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text12.17:1WCAG large text: AAA

Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Dark blue · ΔE 10.7 Navy · ΔE 14.8 Indigo · ΔE 17.4 Blue violet · ΔE 23.7 Dark orchid · ΔE 24.1 Medium blue · ΔE 24.1

Nearest named CSS colourDark blue (#00008B)ΔE 10.71, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#62A100

Analogous#0011A1, #9000A1

Triadic#A13F00, #00A13F

Split complementary#A18F00, #12A100

Tetradic#A10011, #62A100, #00A190

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#A76EFF

Lighter +30%#883BFF

Lighter +20%#6908FF

Lighter +10%#5300D4

Darker −10%#2B006E

Darker −20%#17003B

Darker −30%#030008

Darker −40%#000000

More saturated +25%#3F00A1

Less saturated −25%#43148D

Channel breakdown

R63

B161

Red63 (24.7%)

Green0 (0%)

Blue161 (63.1%)

Hue263.48°

Saturation (HSL)100%

Lightness31.57%

Dominant channelBlue

Hex per channelR 3F · G 00 · B A1

Keep nerding

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

#3F00A1

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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