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Recognised as Colour

#4B1558

  • #4B1558
  • Violet
  • Dark
  • Nearest: Dark slateblue

#4B1558 is a violet with RGB values 75, 21, 88 and HSL 288°, 61%, 21%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#4B1558#4B1558
HEX#4B1558
RGBrgb(75, 21, 88)
RGB (0–1)0.2941, 0.0824, 0.3451
RGB percentages29.4%, 8.2%, 34.5%
HSLhsl(288.4, 61.5%, 21.4%)
HSV / HSBhsv(288.4, 76.1%, 34.5%)
CMYK14.8%, 76.1%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,920,664
CSS custom property--colour: #4B1558;

Brightness & contrast

Relative luminance0.02737WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.57:1
Contrast with white13.57:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#B4EAA7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002A5Ano red cones; affects about 1% of men; ΔE 28.2 from the original
Deuteranopia#1A3056no green cones; the most common form, about 1% of men; ΔE 30.6 from the original
Tritanopia#4B2235no blue cones; rare, and affects men and women equally; ΔE 28.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.57:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.6Midnight blue · ΔE 21.8Rebecca purple · ΔE 24.4Purple · ΔE 26.8Indigo · ΔE 29.6Dark magenta · ΔE 31.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.55, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#225815
Analogous#291558, #581544
Triadic#584B15, #15584B
Split complementary#445815, #155829
Tetradic#582915, #225815, #154458

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C260D9
Lighter +30%#B237CF
Lighter +20%#9129AA
Lighter +10%#6E1F81
Darker −10%#280B2F
Darker −20%#050106
Darker −30%#000000
Darker −40%#000000
More saturated +25%#530766
Less saturated −25%#43234A

Channel breakdown

R75
G21
B88
Red75 (29.4%)
Green21 (8.2%)
Blue88 (34.5%)
Hue288.36°
Saturation (HSL)61.47%
Lightness21.37%
Dominant channelBlue
Hex per channelR 4B · G 15 · B 58

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Every value on this page was computed from “4b1558” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.