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Recognised as Colour

#3D3281

  • #3D3281
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3D3281 is a blue with RGB values 61, 50, 129 and HSL 248°, 44%, 35%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3D3281#3D3281
HEX#3D3281
RGBrgb(61, 50, 129)
RGB (0–1)0.2392, 0.1961, 0.5059
RGB percentages23.9%, 19.6%, 50.6%
HSLhsl(248.4, 44.1%, 35.1%)
HSV / HSBhsv(248.4, 61.2%, 50.6%)
CMYK52.7%, 61.2%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,010,625
CSS custom property--colour: #3D3281;

Brightness & contrast

Relative luminance0.04858WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.65:1
Contrast with white10.65:1WCAG normal text: AAA
Contrast with black1.97:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#C2CD7E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004184no red cones; affects about 1% of men; ΔE 17.3 from the original
Deuteranopia#003C7Fno green cones; the most common form, about 1% of men; ΔE 15.9 from the original
Tritanopia#234454no blue cones; rare, and affects men and women equally; ΔE 45.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.65:1WCAG large text: AAA
Contrast with black, large text1.97:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 4.8Midnight blue · ΔE 13Rebecca purple · ΔE 17.3Slate blue · ΔE 25.5Indigo · ΔE 27Royal blue · ΔE 30.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 4.83, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#768132
Analogous#324E81, #653281
Triadic#813D32, #32813D
Split complementary#816432, #4F8132
Tetradic#81324E, #768132, #328165

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABA3DC
Lighter +30%#8A7FCD
Lighter +20%#685ABF
Lighter +10%#4E40A6
Darker −10%#2C245C
Darker −20%#1A1637
Darker −30%#090713
Darker −40%#000000
More saturated +25%#2D1C97
Less saturated −25%#4D486B

Channel breakdown

R61
G50
B129
Red61 (23.9%)
Green50 (19.6%)
Blue129 (50.6%)
Hue248.35°
Saturation (HSL)44.13%
Lightness35.1%
Dominant channelBlue
Hex per channelR 3D · G 32 · B 81

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Every value on this page was computed from “3d3281” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.