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Colour

#4B0082

  • #4B0082
  • Violet
  • Dark
  • Named: Indigo

#4B0082 is the CSS colour violet with RGB values 75, 0, 130 and HSL 275°, 100%, 25%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#4B0082#4B0082
HEX#4B0082
RGBrgb(75, 0, 130)
RGB (0–1)0.2941, 0, 0.5098
RGB percentages29.4%, 0%, 51%
HSLhsl(274.6, 100%, 25.5%)
HSV / HSBhsv(274.6, 100%, 51%)
CMYK42.3%, 100%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,915,330
CSS custom property--colour: #4B0082;

Brightness & contrast

Relative luminance0.03108WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.95:1
Contrast with white12.95:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#B4FF7D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003185no red cones; affects about 1% of men; ΔE 29.9 from the original
Deuteranopia#003180no green cones; the most common form, about 1% of men; ΔE 32.3 from the original
Tritanopia#3E2E4Ano blue cones; rare, and affects men and women equally; ΔE 54.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.95:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Indigo · ΔE 0Navy · ΔE 14.3Rebecca purple · ΔE 16.4Dark blue · ΔE 16.4Purple · ΔE 20.6Midnight blue · ΔE 20.8
This is a named CSS colourIndigo (#4B0082)exact match
Hue familyviolet
CSS keyword usableindigo

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#378200
Analogous#0A0082, #820078
Triadic#824B00, #00824B
Split complementary#788200, #00820A
Tetradic#820A00, #378200, #007882

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B54FFF
Lighter +30%#9F1CFF
Lighter +20%#8600E8
Lighter +10%#6800B5
Darker −10%#2E004F
Darker −20%#10001C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4B0082
Less saturated −25%#481072

Channel breakdown

R75
G0
B130
Red75 (29.4%)
Green0 (0%)
Blue130 (51%)
Hue274.62°
Saturation (HSL)100%
Lightness25.49%
Dominant channelBlue
Hex per channelR 4B · G 00 · B 82

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Every value on this page was computed from “4b0082” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.