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Recognised as Colour

#581F65

  • #581F65
  • Violet
  • Dark
  • Nearest: Dark slateblue

#581F65 is a violet with RGB values 88, 31, 101 and HSL 289°, 53%, 26%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#581F65#581F65
HEX#581F65
RGBrgb(88, 31, 101)
RGB (0–1)0.3451, 0.1216, 0.3961
RGB percentages34.5%, 12.2%, 39.6%
HSLhsl(288.9, 53%, 25.9%)
HSV / HSBhsv(288.9, 69.3%, 39.6%)
CMYK12.9%, 69.3%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,775,205
CSS custom property--colour: #581F65;

Brightness & contrast

Relative luminance0.03994WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.67:1
Contrast with white11.67:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#A7E09A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#093467no red cones; affects about 1% of men; ΔE 30.3 from the original
Deuteranopia#243A63no green cones; the most common form, about 1% of men; ΔE 31.8 from the original
Tritanopia#582B3Fno blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.67:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.4Rebecca purple · ΔE 20.8Midnight blue · ΔE 22.3Purple · ΔE 23.6Indigo · ΔE 28.1Dark magenta · ΔE 28.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.4, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2C651F
Analogous#351F65, #651F4F
Triadic#65581F, #1F6558
Split complementary#4F651F, #1F6535
Tetradic#65351F, #2C651F, #1F4F65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C57AD6
Lighter +30%#B453CA
Lighter +20%#9C37B3
Lighter +10%#7A2B8C
Darker −10%#36133E
Darker −20%#140717
Darker −30%#000000
Darker −40%#000000
More saturated +25%#620E75
Less saturated −25%#4E2F54

Channel breakdown

R88
G31
B101
Red88 (34.5%)
Green31 (12.2%)
Blue101 (39.6%)
Hue288.86°
Saturation (HSL)53.03%
Lightness25.88%
Dominant channelBlue
Hex per channelR 58 · G 1F · B 65

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Every value on this page was computed from “581f65” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.