Recognised as Colour

#57009E

#57009E
Violet
Dark
Nearest: Indigo

#57009E is a violet with RGB values 87, 0, 158 and HSL 273°, 100%, 31%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#57009E#57009E

HEX#57009E

RGBrgb(87, 0, 158)

RGB (0–1)0.3412, 0, 0.6196

RGB percentages34.1%, 0%, 62%

HSLhsl(273, 100%, 31%)

HSV / HSBhsv(273, 100%, 62%)

CMYK44.9%, 100%, 0%, 38%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,701,790

CSS custom property--colour: #57009E;

Brightness & contrast

Relative luminance0.04495WCAG 2.x, 0 is black and 1 is white

Perceived brightness71.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.06:1

Contrast with white11.06:1WCAG normal text: AAA

Contrast with black1.9:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#A8FF61

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003CA2no red cones; affects about 1% of men; ΔE 33.1 from the original

Deuteranopia#003A9Cno green cones; the most common form, about 1% of men; ΔE 34.3 from the original

Tritanopia#443A5Bno blue cones; rare, and affects men and women equally; ΔE 64.6 from the original

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

Contrast with white, large text11.06:1WCAG large text: AAA

Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Indigo · ΔE 12.9 Dark blue · ΔE 14.8 Navy · ΔE 17 Dark orchid · ΔE 19.3 Blue violet · ΔE 23.4 Dark violet · ΔE 23.7

Nearest named CSS colourIndigo (#4B0082)ΔE 12.92, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#479E00

Analogous#08009E, #9E0096

Triadic#9E5700, #009E57

Split complementary#969E00, #009E08

Tetradic#9E0800, #479E00, #00969E

Tints, shades & saturation

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

Lighter +40%#BC6BFF

Lighter +30%#A638FF

Lighter +20%#8F05FF

Lighter +10%#7300D1

Darker −10%#3B006B

Darker −20%#1F0038

Darker −30%#030005

Darker −40%#000000

More saturated +25%#57009E

Less saturated −25%#55148A

Channel breakdown

R87

B158

Red87 (34.1%)

Green0 (0%)

Blue158 (62%)

Hue273.04°

Saturation (HSL)100%

Lightness30.98%

Dominant channelBlue

Hex per channelR 57 · G 00 · B 9E

Keep nerding

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#57009E

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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