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Recognised as Colour

#42184A

  • #42184A
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#42184A is a magenta with RGB values 66, 24, 74 and HSL 290°, 51%, 19%. It is a dark colour, so white text on it reaches 14.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#42184A#42184A
HEX#42184A
RGBrgb(66, 24, 74)
RGB (0–1)0.2588, 0.0941, 0.2902
RGB percentages25.9%, 9.4%, 29%
HSLhsl(290.4, 51%, 19.2%)
HSV / HSBhsv(290.4, 67.6%, 29%)
CMYK10.8%, 67.6%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,331,594
CSS custom property--colour: #42184A;

Brightness & contrast

Relative luminance0.02306WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.37:1
Contrast with white14.37:1WCAG normal text: AAA
Contrast with black1.46:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#BDE7B5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0D274Cno red cones; affects about 1% of men; ΔE 23.7 from the original
Deuteranopia#1D2B49no green cones; the most common form, about 1% of men; ΔE 24.3 from the original
Tritanopia#43202Eno blue cones; rare, and affects men and women equally; ΔE 22.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.37:1WCAG large text: AAA
Contrast with black, large text1.46:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.4Midnight blue · ΔE 27.6Rebecca purple · ΔE 32.8Purple · ΔE 35.7Indigo · ΔE 38.9Black · ΔE 40.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.43, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#204A18
Analogous#29184A, #4A1839
Triadic#4A4218, #184A42
Split complementary#394A18, #184A29
Tetradic#4A2918, #204A18, #18394A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BB62CC
Lighter +30%#A93DBE
Lighter +20%#873197
Lighter +10%#642471
Darker −10%#200C23
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4A0C56
Less saturated −25%#3A243E

Channel breakdown

R66
G24
B74
Red66 (25.9%)
Green24 (9.4%)
Blue74 (29%)
Hue290.4°
Saturation (HSL)51.02%
Lightness19.22%
Dominant channelBlue
Hex per channelR 42 · G 18 · B 4A

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Every value on this page was computed from “42184a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.