Colour

#280F68

#280F68
Violet
Dark
Nearest: Midnight blue

#280F68 is a violet with RGB values 40, 15, 104 and HSL 257°, 75%, 23%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#280F68#280F68

HEX#280F68

RGBrgb(40, 15, 104)

RGB (0–1)0.1569, 0.0588, 0.4078

RGB percentages15.7%, 5.9%, 40.8%

HSLhsl(256.9, 74.8%, 23.3%)

HSV / HSBhsv(256.9, 85.6%, 40.8%)

CMYK61.5%, 85.6%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,625,384

CSS custom property--colour: #280F68;

Brightness & contrast

Relative luminance0.01792WCAG 2.x, 0 is black and 1 is white

Perceived brightness42.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.46:1

Contrast with white15.46:1WCAG normal text: AAA

Contrast with black1.36:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#D7F097

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00276Ano red cones; affects about 1% of men; ΔE 19.5 from the original

Deuteranopia#002266no green cones; the most common form, about 1% of men; ΔE 17.3 from the original

Tritanopia#052A3Cno blue cones; rare, and affects men and women equally; ΔE 52.1 from the original

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

Contrast with white, large text15.46:1WCAG large text: AAA

Contrast with black, large text1.36:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.5 Indigo · ΔE 17.9 Rebecca purple · ΔE 19.7 Dark slateblue · ΔE 19.9 Navy · ΔE 21.2 Dark blue · ΔE 26.1

Nearest named CSS colourMidnight blue (#191970)ΔE 5.49, clearly different but related

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4F680F

Analogous#0F2368, #540F68

Triadic#68280F, #0F6828

Split complementary#68540F, #22680F

Tetradic#680F23, #4F680F, #0F6854

Tints, shades & saturation

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

Lighter +40%#835CE7

Lighter +30%#612FE1

Lighter +20%#4A1CC1

Lighter +10%#391595

Darker −10%#17093B

Darker −20%#06020F

Darker −30%#000000

Darker −40%#000000

More saturated +25%#210077

Less saturated −25%#2F1E59

Channel breakdown

R40

G15

B104

Red40 (15.7%)

Green15 (5.9%)

Blue104 (40.8%)

Hue256.85°

Saturation (HSL)74.79%

Lightness23.33%

Dominant channelBlue

Hex per channelR 28 · G 0F · B 68

Keep nerding

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#280F68

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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