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Colour

#280D58

  • #280D58
  • Violet
  • Dark
  • Nearest: Midnight blue

#280D58 is a violet with RGB values 40, 13, 88 and HSL 262°, 74%, 20%. It is a dark colour, so white text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#280D58#280D58
HEX#280D58
RGBrgb(40, 13, 88)
RGB (0–1)0.1569, 0.051, 0.3451
RGB percentages15.7%, 5.1%, 34.5%
HSLhsl(261.6, 74.3%, 19.8%)
HSV / HSBhsv(261.6, 85.2%, 34.5%)
CMYK54.5%, 85.2%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,624,856
CSS custom property--colour: #280D58;

Brightness & contrast

Relative luminance0.01444WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.3:1
Contrast with white16.3:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#D7F2A7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00215Ano red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#001E57no green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#182333no blue cones; rare, and affects men and women equally; ΔE 42.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.3:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.6Dark slateblue · ΔE 19.8Rebecca purple · ΔE 24.4Indigo · ΔE 25.1Navy · ΔE 29.4Purple · ΔE 32
Nearest named CSS colourMidnight blue (#191970)ΔE 10.64, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D580D
Analogous#0D1758, #4E0D58
Triadic#58280D, #0D5828
Split complementary#584E0D, #17580D
Tetradic#580D17, #3D580D, #0D584E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#834CE5
Lighter +30%#6521DD
Lighter +20%#501AB1
Lighter +10%#3C1484
Darker −10%#14062C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#240065
Less saturated −25%#2C1A4B

Channel breakdown

R40
G13
B88
Red40 (15.7%)
Green13 (5.1%)
Blue88 (34.5%)
Hue261.6°
Saturation (HSL)74.26%
Lightness19.8%
Dominant channelBlue
Hex per channelR 28 · G 0D · B 58

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Every value on this page was computed from “280d58” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.