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Recognised as Colour

#3A4185

  • #3A4185
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3A4185 is a blue with RGB values 58, 65, 133 and HSL 234°, 39%, 37%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3A4185#3A4185
HEX#3A4185
RGBrgb(58, 65, 133)
RGB (0–1)0.2275, 0.2549, 0.5216
RGB percentages22.7%, 25.5%, 52.2%
HSLhsl(234.4, 39.3%, 37.5%)
HSV / HSBhsv(234.4, 56.4%, 52.2%)
CMYK56.4%, 51.1%, 0%, 47.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,817,861
CSS custom property--colour: #3A4185;

Brightness & contrast

Relative luminance0.06374WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.23:1
Contrast with white9.23:1WCAG normal text: AAA
Contrast with black2.27:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#C5BE7A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F4B87no red cones; affects about 1% of men; ΔE 11.1 from the original
Deuteranopia#154484no green cones; the most common form, about 1% of men; ΔE 8.7 from the original
Tritanopia#14505Cno blue cones; rare, and affects men and women equally; ΔE 42 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.23:1WCAG large text: AAA
Contrast with black, large text2.27:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8.4Midnight blue · ΔE 22.4Rebecca purple · ΔE 26.1Slate blue · ΔE 29.8Steel blue · ΔE 32.2Royal blue · ΔE 32.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 8.38, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#857E3A
Analogous#3A6785, #583A85
Triadic#853A41, #41853A
Split complementary#85583A, #67853A
Tetradic#853A67, #857E3A, #3A8558

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AFB3DC
Lighter +30%#8B91CD
Lighter +20%#6870BD
Lighter +10%#4952A9
Darker −10%#2B3061
Darker −20%#1B1E3E
Darker −30%#0C0D1A
Darker −40%#000000
More saturated +25%#222E9D
Less saturated −25%#52546D

Channel breakdown

R58
G65
B133
Red58 (22.7%)
Green65 (25.5%)
Blue133 (52.2%)
Hue234.4°
Saturation (HSL)39.27%
Lightness37.45%
Dominant channelBlue
Hex per channelR 3A · G 41 · B 85

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Every value on this page was computed from “3a4185” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.