Colour

#280B4A

#280B4A
Violet
Dark
Nearest: Midnight blue

#280B4A is a violet with RGB values 40, 11, 74 and HSL 268°, 74%, 17%. It is a dark colour, so white text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#280B4A#280B4A

HEX#280B4A

RGBrgb(40, 11, 74)

RGB (0–1)0.1569, 0.0431, 0.2902

RGB percentages15.7%, 4.3%, 29%

HSLhsl(267.6, 74.1%, 16.7%)

HSV / HSBhsv(267.6, 85.1%, 29%)

CMYK45.9%, 85.1%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,624,330

CSS custom property--colour: #280B4A;

Brightness & contrast

Relative luminance0.01185WCAG 2.x, 0 is black and 1 is white

Perceived brightness34.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.98:1

Contrast with white16.98:1WCAG normal text: AAA

Contrast with black1.24:1WCAG normal text: Fail

Greyscale equivalent#161616

Inverted#D7F4B5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001C4Cno red cones; affects about 1% of men; ΔE 17.1 from the original

Deuteranopia#001C49no green cones; the most common form, about 1% of men; ΔE 18.6 from the original

Tritanopia#201C2Ano blue cones; rare, and affects men and women equally; ΔE 33.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.98:1WCAG large text: AAA

Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 17.7 Dark slateblue · ΔE 22.6 Rebecca purple · ΔE 29.9 Indigo · ΔE 32 Purple · ΔE 35.7 Navy · ΔE 36.8

Nearest named CSS colourMidnight blue (#191970)ΔE 17.69, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2D4A0B

Analogous#0B0D4A, #480B4A

Triadic#4A280B, #0B4A28

Split complementary#4A480B, #0D4A0B

Tetradic#4A0B0D, #2D4A0B, #0B4A48

Tints, shades & saturation

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

Lighter +40%#8A3FE2

Lighter +30%#701FCF

Lighter +20%#5818A3

Lighter +10%#401276

Darker −10%#10041E

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#270055

Less saturated −25%#29163F

Channel breakdown

R40

G11

B74

Red40 (15.7%)

Green11 (4.3%)

Blue74 (29%)

Hue267.62°

Saturation (HSL)74.12%

Lightness16.67%

Dominant channelBlue

Hex per channelR 28 · G 0B · B 4A

Keep nerding

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

#280B4A

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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