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Recognised as Colour

#581D42

  • #581D42
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#581D42 is a magenta with RGB values 88, 29, 66 and HSL 322°, 50%, 23%. It is a dark colour, so white text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#581D42#581D42
HEX#581D42
RGBrgb(88, 29, 66)
RGB (0–1)0.3451, 0.1137, 0.2588
RGB percentages34.5%, 11.4%, 25.9%
HSLhsl(322.4, 50.4%, 22.9%)
HSV / HSBhsv(322.4, 67%, 34.5%)
CMYK0%, 67%, 25%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,774,658
CSS custom property--colour: #581D42;

Brightness & contrast

Relative luminance0.03347WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.58:1
Contrast with white12.58:1WCAG normal text: AAA
Contrast with black1.67:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#A7E2BD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#232D43no red cones; affects about 1% of men; ΔE 29.7 from the original
Deuteranopia#343741no green cones; the most common form, about 1% of men; ΔE 30.6 from the original
Tritanopia#5E1C2Cno blue cones; rare, and affects men and women equally; ΔE 15.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.58:1WCAG large text: AAA
Contrast with black, large text1.67:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 34.4Purple · ΔE 39.3Black · ΔE 39.4Dim grey · ΔE 40.3Midnight blue · ΔE 40.4Rebecca purple · ΔE 40.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 34.35, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D5833
Analogous#501D58, #581D25
Triadic#42581D, #1D4258
Split complementary#25581D, #1D5850
Tetradic#58501D, #1D5833, #1D2558

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D071AD
Lighter +30%#C44A96
Lighter +20%#A5367C
Lighter +10%#7E2A5F
Darker −10%#321025
Darker −20%#0B0408
Darker −30%#000000
Darker −40%#000000
More saturated +25%#670E46
Less saturated −25%#492C3E

Channel breakdown

R88
G29
B66
Red88 (34.5%)
Green29 (11.4%)
Blue66 (25.9%)
Hue322.37°
Saturation (HSL)50.43%
Lightness22.94%
Dominant channelRed
Hex per channelR 58 · G 1D · B 42

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Every value on this page was computed from “581d42” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.