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Recognised as Colour

#28055E

  • #28055E
  • Violet
  • Dark
  • Nearest: Midnight blue

#28055E is a violet with RGB values 40, 5, 94 and HSL 264°, 90%, 19%. It is a dark colour, so white text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#28055E#28055E
HEX#28055E
RGBrgb(40, 5, 94)
RGB (0–1)0.1569, 0.0196, 0.3686
RGB percentages15.7%, 2%, 36.9%
HSLhsl(263.6, 89.9%, 19.4%)
HSV / HSBhsv(263.6, 94.7%, 36.9%)
CMYK57.4%, 94.7%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,622,814
CSS custom property--colour: #28055E;

Brightness & contrast

Relative luminance0.01368WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.49:1
Contrast with white16.49:1WCAG normal text: AAA
Contrast with black1.27:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#D7FAA1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002060no red cones; affects about 1% of men; ΔE 19.8 from the original
Deuteranopia#001D5Dno green cones; the most common form, about 1% of men; ΔE 18.8 from the original
Tritanopia#132235no blue cones; rare, and affects men and women equally; ΔE 47.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text16.49:1WCAG large text: AAA
Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.8Indigo · ΔE 18.8Rebecca purple · ΔE 22Dark slateblue · ΔE 22.4Navy · ΔE 22.6Dark blue · ΔE 27.6
Nearest named CSS colourMidnight blue (#191970)ΔE 8.78, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B5E05
Analogous#050E5E, #55055E
Triadic#5E2805, #055E28
Split complementary#5E5405, #0F5E05
Tetradic#5E050E, #3B5E05, #055E55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#843AF5
Lighter +30%#660DEF
Lighter +20%#510ABF
Lighter +10%#3D088E
Darker −10%#13022E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#270063
Less saturated −25%#2B1152

Channel breakdown

R40
G5
B94
Red40 (15.7%)
Green5 (2%)
Blue94 (36.9%)
Hue263.6°
Saturation (HSL)89.9%
Lightness19.41%
Dominant channelBlue
Hex per channelR 28 · G 05 · B 5E

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Every value on this page was computed from “28055e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.