Recognised as Colour

#280A3A

#280A3A
Violet
Dark
Nearest: Midnight blue

#280A3A is a violet with RGB values 40, 10, 58 and HSL 278°, 71%, 13%. It is a dark colour, so white text on it reaches 17.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#280A3A#280A3A

HEX#280A3A

RGBrgb(40, 10, 58)

RGB (0–1)0.1569, 0.0392, 0.2275

RGB percentages15.7%, 3.9%, 22.7%

HSLhsl(277.5, 70.6%, 13.3%)

HSV / HSBhsv(277.5, 82.8%, 22.7%)

CMYK31%, 82.8%, 0%, 77.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,624,058

CSS custom property--colour: #280A3A;

Brightness & contrast

Relative luminance0.00974WCAG 2.x, 0 is black and 1 is white

Perceived brightness30.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.58:1

Contrast with white17.58:1WCAG normal text: AAA

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

Greyscale equivalent#141414

Inverted#D7F5C5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00183Bno red cones; affects about 1% of men; ΔE 18.2 from the original

Deuteranopia#031939no green cones; the most common form, about 1% of men; ΔE 19.4 from the original

Tritanopia#251521no blue cones; rare, and affects men and women equally; ΔE 24.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.58:1WCAG large text: AAA

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

Named colours

Midnight blue · ΔE 27 Dark slateblue · ΔE 28.3 Black · ΔE 36.1 Rebecca purple · ΔE 37.6 Indigo · ΔE 41 Purple · ΔE 41.6

Nearest named CSS colourMidnight blue (#191970)ΔE 27.03, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1C3A0A

Analogous#100A3A, #3A0A34

Triadic#3A280A, #0A3A28

Split complementary#343A0A, #0A3A10

Tetradic#3A100A, #1C3A0A, #0A343A

Tints, shades & saturation

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

Lighter +40%#9D34DC

Lighter +30%#8220BD

Lighter +20%#641991

Lighter +10%#461166

Darker −10%#0A030F

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2A0242

Less saturated −25%#261232

Channel breakdown

R40

G10

B58

Red40 (15.7%)

Green10 (3.9%)

Blue58 (22.7%)

Hue277.5°

Saturation (HSL)70.59%

Lightness13.33%

Dominant channelBlue

Hex per channelR 28 · G 0A · B 3A

Keep nerding

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

#280A3A

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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