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Recognised as Colour

#3B1558

  • #3B1558
  • Violet
  • Dark
  • Nearest: Midnight blue

#3B1558 is a violet with RGB values 59, 21, 88 and HSL 274°, 61%, 21%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#3B1558#3B1558
HEX#3B1558
RGBrgb(59, 21, 88)
RGB (0–1)0.2314, 0.0824, 0.3451
RGB percentages23.1%, 8.2%, 34.5%
HSLhsl(274, 61.5%, 21.4%)
HSV / HSBhsv(274, 76.1%, 34.5%)
CMYK33%, 76.1%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,872,088
CSS custom property--colour: #3B1558;

Brightness & contrast

Relative luminance0.02171WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.64:1
Contrast with white14.64:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#C4EAA7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00275Ano red cones; affects about 1% of men; ΔE 21.8 from the original
Deuteranopia#012957no green cones; the most common form, about 1% of men; ΔE 24.6 from the original
Tritanopia#362435no blue cones; rare, and affects men and women equally; ΔE 32 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.64:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 16.8Dark slateblue · ΔE 18.2Rebecca purple · ΔE 24.5Indigo · ΔE 28.8Purple · ΔE 30.3Dark magenta · ΔE 35.1
Nearest named CSS colourMidnight blue (#191970)ΔE 16.83, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#325815
Analogous#1A1558, #581553
Triadic#583B15, #15583B
Split complementary#535815, #15581A
Tetradic#581A15, #325815, #155358

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A560D9
Lighter +30%#8D37CF
Lighter +20%#7229AA
Lighter +10%#571F81
Darker −10%#1F0B2F
Darker −20%#040106
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3D0766
Less saturated −25%#39234A

Channel breakdown

R59
G21
B88
Red59 (23.1%)
Green21 (8.2%)
Blue88 (34.5%)
Hue274.03°
Saturation (HSL)61.47%
Lightness21.37%
Dominant channelBlue
Hex per channelR 3B · G 15 · B 58

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Every value on this page was computed from “3b1558” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.