Recognised as Colour

#28004A

#28004A
Violet
Dark
Nearest: Midnight blue

#28004A is a violet with RGB values 40, 0, 74 and HSL 272°, 100%, 15%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#28004A#28004A

HEX#28004A

RGBrgb(40, 0, 74)

RGB (0–1)0.1569, 0, 0.2902

RGB percentages15.7%, 0%, 29%

HSLhsl(272.4, 100%, 14.5%)

HSV / HSBhsv(272.4, 100%, 29%)

CMYK45.9%, 100%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,621,514

CSS custom property--colour: #28004A;

Brightness & contrast

Relative luminance0.00946WCAG 2.x, 0 is black and 1 is white

Perceived brightness33.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.66:1

Contrast with white17.66:1WCAG normal text: AAA

Contrast with black1.19:1WCAG normal text: Fail

Greyscale equivalent#0E0E0E

Inverted#D7FFB5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00184Cno red cones; affects about 1% of men; ΔE 19.7 from the original

Deuteranopia#001849no green cones; the most common form, about 1% of men; ΔE 21.2 from the original

Tritanopia#201728no blue cones; rare, and affects men and women equally; ΔE 36.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.66:1WCAG large text: AAA

Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 15.7 Dark slateblue · ΔE 24.7 Indigo · ΔE 26.9 Rebecca purple · ΔE 28 Navy · ΔE 31.6 Purple · ΔE 32.1

Nearest named CSS colourMidnight blue (#191970)ΔE 15.68, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#224A00

Analogous#03004A, #4A0047

Triadic#4A2800, #004A28

Split complementary#474A00, #004A03

Tetradic#4A0300, #224A00, #00474A

Tints, shades & saturation

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

Lighter +40%#9417FF

Lighter +30%#7B00E3

Lighter +20%#5F00B0

Lighter +10%#44007D

Darker −10%#0C0017

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#28004A

Less saturated −25%#270941

Channel breakdown

R40

B74

Red40 (15.7%)

Green0 (0%)

Blue74 (29%)

Hue272.43°

Saturation (HSL)100%

Lightness14.51%

Dominant channelBlue

Hex per channelR 28 · G 00 · B 4A

Keep nerding

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

#28004A

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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