Colour

#280F39

#280F39
Violet
Dark
Nearest: Dark slateblue

#280F39 is a violet with RGB values 40, 15, 57 and HSL 276°, 58%, 14%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#280F39#280F39

HEX#280F39

RGBrgb(40, 15, 57)

RGB (0–1)0.1569, 0.0588, 0.2235

RGB percentages15.7%, 5.9%, 22.4%

HSLhsl(275.7, 58.3%, 14.1%)

HSV / HSBhsv(275.7, 73.7%, 22.4%)

CMYK29.8%, 73.7%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,625,337

CSS custom property--colour: #280F39;

Brightness & contrast

Relative luminance0.01088WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.25:1

Contrast with white17.25:1WCAG normal text: AAA

Contrast with black1.22:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#D7F0C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001A3Ano red cones; affects about 1% of men; ΔE 17.2 from the original

Deuteranopia#081B38no green cones; the most common form, about 1% of men; ΔE 17.4 from the original

Tritanopia#261722no blue cones; rare, and affects men and women equally; ΔE 21.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.25:1WCAG large text: AAA

Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.4 Midnight blue · ΔE 29.8 Black · ΔE 32.7 Rebecca purple · ΔE 40 Dark slate grey · ΔE 44.1 Indigo · ΔE 44.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.35, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#20390F

Analogous#130F39, #390F35

Triadic#39280F, #0F3928

Split complementary#35390F, #0F3913

Tetradic#39130F, #20390F, #0F3539

Tints, shades & saturation

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

Lighter +40%#9746CE

Lighter +30%#7D2FB2

Lighter +20%#61248A

Lighter +10%#441A61

Darker −10%#0C0411

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2A0642

Less saturated −25%#261830

Channel breakdown

R40

G15

B57

Red40 (15.7%)

Green15 (5.9%)

Blue57 (22.4%)

Hue275.71°

Saturation (HSL)58.33%

Lightness14.12%

Dominant channelBlue

Hex per channelR 28 · G 0F · B 39

Keep nerding

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

#280F39

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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