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Recognised as Colour

#3D3DC1

  • #3D3DC1
  • Blue
  • Dark
  • Nearest: Slate blue

#3D3DC1 is a blue with RGB values 61, 61, 193 and HSL 240°, 52%, 50%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#3D3DC1#3D3DC1
HEX#3D3DC1
RGBrgb(61, 61, 193)
RGB (0–1)0.2392, 0.2392, 0.7569
RGB percentages23.9%, 23.9%, 75.7%
HSLhsl(240, 52%, 49.8%)
HSV / HSBhsv(240, 68.4%, 75.7%)
CMYK68.4%, 68.4%, 0%, 24.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,013,505
CSS custom property--colour: #3D3DC1;

Brightness & contrast

Relative luminance0.0818WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.97:1
Contrast with white7.97:1WCAG normal text: AAA
Contrast with black2.64:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#C2C23E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057C5no red cones; affects about 1% of men; ΔE 21.1 from the original
Deuteranopia#004BBFno green cones; the most common form, about 1% of men; ΔE 14.5 from the original
Tritanopia#00617Ano blue cones; rare, and affects men and women equally; ΔE 74.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.97:1WCAG large text: AAA
Contrast with black, large text2.64:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.7Medium slateblue · ΔE 18.2Royal blue · ΔE 21Dark blue · ΔE 21.3Rebecca purple · ΔE 21.8Navy · ΔE 22.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C1C13D
Analogous#3D7FC1, #7F3DC1
Triadic#C13D3D, #3DC13D
Split complementary#C17F3D, #7FC13D
Tetradic#C13D7F, #C1C13D, #3DC17F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7D7F3
Lighter +30%#B1B1E6
Lighter +20%#8A8ADA
Lighter +10%#6363CE
Darker −10%#31319A
Darker −20%#252573
Darker −30%#18184D
Darker −40%#0C0C26
More saturated +25%#1D1DE1
Less saturated −25%#5D5DA1

Channel breakdown

R61
G61
B193
Red61 (23.9%)
Green61 (23.9%)
Blue193 (75.7%)
Hue240°
Saturation (HSL)51.97%
Lightness49.8%
Dominant channelBlue
Hex per channelR 3D · G 3D · B C1

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Every value on this page was computed from “3d3dc1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.