Colour

#3700A0

#3700A0
Violet
Dark
Nearest: Dark blue

#3700A0 is a violet with RGB values 55, 0, 160 and HSL 261°, 100%, 31%. It is a dark colour, so white text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3700A0#3700A0

HEX#3700A0

RGBrgb(55, 0, 160)

RGB (0–1)0.2157, 0, 0.6275

RGB percentages21.6%, 0%, 62.7%

HSLhsl(260.6, 100%, 31.4%)

HSV / HSBhsv(260.6, 100%, 62.7%)

CMYK65.6%, 100%, 0%, 37.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,604,640

CSS custom property--colour: #3700A0;

Brightness & contrast

Relative luminance0.0335WCAG 2.x, 0 is black and 1 is white

Perceived brightness61.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.57:1

Contrast with white12.57:1WCAG normal text: AAA

Contrast with black1.67:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#C8FF5F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0038A4no red cones; affects about 1% of men; ΔE 29.4 from the original

Deuteranopia#002E9Eno green cones; the most common form, about 1% of men; ΔE 24.3 from the original

Tritanopia#003E5Cno blue cones; rare, and affects men and women equally; ΔE 78.7 from the original

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

Contrast with white, large text12.57:1WCAG large text: AAA

Contrast with black, large text1.67:1WCAG large text: Fail

Named colours

Dark blue · ΔE 9.7 Navy · ΔE 14.1 Indigo · ΔE 18.1 Medium blue · ΔE 23.5 Blue violet · ΔE 24.7 Dark orchid · ΔE 25.6

Nearest named CSS colourDark blue (#00008B)ΔE 9.66, clearly different but related

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#69A000

Analogous#0019A0, #8700A0

Triadic#A03700, #00A037

Split complementary#A08700, #19A000

Tetradic#A00019, #69A000, #00A087

Tints, shades & saturation

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

Lighter +40%#9F6DFF

Lighter +30%#7E3AFF

Lighter +20%#5C07FF

Lighter +10%#4900D3

Darker −10%#25006D

Darker −20%#14003A

Darker −30%#020007

Darker −40%#000000

More saturated +25%#3700A0

Less saturated −25%#3D148C

Channel breakdown

R55

B160

Red55 (21.6%)

Green0 (0%)

Blue160 (62.7%)

Hue260.63°

Saturation (HSL)100%

Lightness31.37%

Dominant channelBlue

Hex per channelR 37 · G 00 · B A0

Keep nerding

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

#3700A0

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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