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Recognised as Colour

#3D31CB

  • #3D31CB
  • Blue
  • Dark
  • Nearest: Dark blue

#3D31CB is a blue with RGB values 61, 49, 203 and HSL 245°, 61%, 49%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#3D31CB#3D31CB
HEX#3D31CB
RGBrgb(61, 49, 203)
RGB (0–1)0.2392, 0.1922, 0.7961
RGB percentages23.9%, 19.2%, 79.6%
HSLhsl(244.7, 61.1%, 49.4%)
HSV / HSBhsv(244.7, 75.9%, 79.6%)
CMYK70%, 75.9%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,010,443
CSS custom property--colour: #3D31CB;

Brightness & contrast

Relative luminance0.07501WCAG 2.x, 0 is black and 1 is white
Perceived brightness85 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.4:1
Contrast with white8.4:1WCAG normal text: AAA
Contrast with black2.5:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#C2CE34

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054CFno red cones; affects about 1% of men; ΔE 25.8 from the original
Deuteranopia#0046C8no green cones; the most common form, about 1% of men; ΔE 18.1 from the original
Tritanopia#005E7Cno blue cones; rare, and affects men and women equally; ΔE 83.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.4:1WCAG large text: AAA
Contrast with black, large text2.5:1WCAG large text: Fail

Named colours

Dark blue · ΔE 20.1Blue violet · ΔE 20.3Medium blue · ΔE 22.5Navy · ΔE 23.9Dark orchid · ΔE 23.9Medium slateblue · ΔE 25
Nearest named CSS colourDark blue (#00008B)ΔE 20.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BFCB31
Analogous#3172CB, #8A31CB
Triadic#CB3D31, #31CB3D
Split complementary#CB8A31, #72CB31
Tetradic#CB3172, #BFCB31, #31CB8A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6D3F5
Lighter +30%#AFAAEB
Lighter +20%#8981E1
Lighter +10%#6258D7
Darker −10%#3127A2
Darker −20%#241D79
Darker −30%#181350
Darker −40%#0C0927
More saturated +25%#2211EB
Less saturated −25%#5851AC

Channel breakdown

R61
G49
B203
Red61 (23.9%)
Green49 (19.2%)
Blue203 (79.6%)
Hue244.68°
Saturation (HSL)61.11%
Lightness49.41%
Dominant channelBlue
Hex per channelR 3D · G 31 · B CB

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Every value on this page was computed from “3d31cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.