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Recognised as Colour

#58018A

  • #58018A
  • Violet
  • Dark
  • Nearest: Indigo

#58018A is a violet with RGB values 88, 1, 138 and HSL 278°, 99%, 27%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#58018A#58018A
HEX#58018A
RGBrgb(88, 1, 138)
RGB (0–1)0.3451, 0.0039, 0.5412
RGB percentages34.5%, 0.4%, 54.1%
HSLhsl(278.1, 98.6%, 27.3%)
HSV / HSBhsv(278.1, 99.3%, 54.1%)
CMYK36.2%, 99.3%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,767,562
CSS custom property--colour: #58018A;

Brightness & contrast

Relative luminance0.03931WCAG 2.x, 0 is black and 1 is white
Perceived brightness67 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.76:1
Contrast with white11.76:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#A7FE75

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00368Dno red cones; affects about 1% of men; ΔE 32.9 from the original
Deuteranopia#003888no green cones; the most common form, about 1% of men; ΔE 36.7 from the original
Tritanopia#4E314Fno blue cones; rare, and affects men and women equally; ΔE 53.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.76:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Indigo · ΔE 4.2Rebecca purple · ΔE 16.3Navy · ΔE 17Dark blue · ΔE 18.1Purple · ΔE 18.5Dark magenta · ΔE 19
Nearest named CSS colourIndigo (#4B0082)ΔE 4.19, a close match
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#338A01
Analogous#14018A, #8A0177
Triadic#8A5801, #018A58
Split complementary#788A01, #018A13
Tetradic#8A1301, #338A01, #01778A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C259FE
Lighter +30%#AF27FD
Lighter +20%#9902EF
Lighter +10%#7801BD
Darker −10%#380157
Darker −20%#170025
Darker −30%#000000
Darker −40%#000000
More saturated +25%#58008B
Less saturated −25%#531279

Channel breakdown

R88
G1
B138
Red88 (34.5%)
Green1 (0.4%)
Blue138 (54.1%)
Hue278.1°
Saturation (HSL)98.56%
Lightness27.25%
Dominant channelBlue
Hex per channelR 58 · G 01 · B 8A

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Every value on this page was computed from “58018a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.