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Recognised as Colour

#391EA7

  • #391EA7
  • Blue
  • Dark
  • Nearest: Dark blue

#391EA7 is a blue with RGB values 57, 30, 167 and HSL 252°, 70%, 39%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#391EA7#391EA7
HEX#391EA7
RGBrgb(57, 30, 167)
RGB (0–1)0.2235, 0.1176, 0.6549
RGB percentages22.4%, 11.8%, 65.5%
HSLhsl(251.8, 69.5%, 38.6%)
HSV / HSBhsv(251.8, 82%, 65.5%)
CMYK65.9%, 82%, 0%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,743,399
CSS custom property--colour: #391EA7;

Brightness & contrast

Relative luminance0.04588WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.95:1
Contrast with white10.95:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#C6E158

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0041ABno red cones; affects about 1% of men; ΔE 24.9 from the original
Deuteranopia#0037A5no green cones; the most common form, about 1% of men; ΔE 19.8 from the original
Tritanopia#004964no blue cones; rare, and affects men and women equally; ΔE 75.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.95:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Dark blue · ΔE 10.8Navy · ΔE 13.2Indigo · ΔE 15.5Rebecca purple · ΔE 23.1Dark orchid · ΔE 24.7Slate blue · ΔE 26.2
Nearest named CSS colourDark blue (#00008B)ΔE 10.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8CA71E
Analogous#1E47A7, #7E1EA7
Triadic#A7391E, #1EA739
Split complementary#A77D1E, #48A71E
Tetradic#A71E47, #8CA71E, #1EA77E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2A3EE
Lighter +30%#8D77E7
Lighter +20%#694CDF
Lighter +10%#4826D2
Darker −10%#2A167C
Darker −20%#1B0E51
Darker −30%#0D0725
Darker −40%#000000
More saturated +25%#2A05C0
Less saturated −25%#48378E

Channel breakdown

R57
G30
B167
Red57 (22.4%)
Green30 (11.8%)
Blue167 (65.5%)
Hue251.82°
Saturation (HSL)69.54%
Lightness38.63%
Dominant channelBlue
Hex per channelR 39 · G 1E · B A7

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Every value on this page was computed from “391ea7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.