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Recognised as Colour

#491B41

  • #491B41
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#491B41 is a magenta with RGB values 73, 27, 65 and HSL 310°, 46%, 20%. It is a dark colour, so white text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#491B41#491B41
HEX#491B41
RGBrgb(73, 27, 65)
RGB (0–1)0.2863, 0.1059, 0.2549
RGB percentages28.6%, 10.6%, 25.5%
HSLhsl(310.4, 46%, 19.6%)
HSV / HSBhsv(310.4, 63%, 28.6%)
CMYK0%, 63%, 11%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,791,105
CSS custom property--colour: #491B41;

Brightness & contrast

Relative luminance0.02582WCAG 2.x, 0 is black and 1 is white
Perceived brightness50 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.85:1
Contrast with white13.85:1WCAG normal text: AAA
Contrast with black1.52:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#B6E4BE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1B2842no red cones; affects about 1% of men; ΔE 24.5 from the original
Deuteranopia#292F40no green cones; the most common form, about 1% of men; ΔE 25.3 from the original
Tritanopia#4D1E2Bno blue cones; rare, and affects men and women equally; ΔE 16.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.85:1WCAG large text: AAA
Contrast with black, large text1.52:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 30.9Black · ΔE 35.8Midnight blue · ΔE 36.1Rebecca purple · ΔE 39.5Dim grey · ΔE 40.4Purple · ΔE 40.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 30.94, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B4923
Analogous#3A1B49, #491B2A
Triadic#41491B, #1B4149
Split complementary#2A491B, #1B493A
Tetradic#493A1B, #1B4923, #1B2A49

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C769B7
Lighter +30%#B944A4
Lighter +20%#933783
Lighter +10%#6E2962
Darker −10%#240D20
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#560F49
Less saturated −25%#3D2839

Channel breakdown

R73
G27
B65
Red73 (28.6%)
Green27 (10.6%)
Blue65 (25.5%)
Hue310.43°
Saturation (HSL)46%
Lightness19.61%
Dominant channelRed
Hex per channelR 49 · G 1B · B 41

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Every value on this page was computed from “491b41” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.