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Recognised as Colour

#3B4153

  • #3B4153
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3B4153 is a blue with RGB values 59, 65, 83 and HSL 225°, 17%, 28%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3B4153#3B4153
HEX#3B4153
RGBrgb(59, 65, 83)
RGB (0–1)0.2314, 0.2549, 0.3255
RGB percentages23.1%, 25.5%, 32.5%
HSLhsl(225, 16.9%, 27.8%)
HSV / HSBhsv(225, 28.9%, 32.5%)
CMYK28.9%, 21.7%, 0%, 67.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,883,347
CSS custom property--colour: #3B4153;

Brightness & contrast

Relative luminance0.05335WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.16:1
Contrast with white10.16:1WCAG normal text: AAA
Contrast with black2.07:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#C4BEAC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3C4254no red cones; affects about 1% of men; ΔE 0.4 from the original
Deuteranopia#3A4053no green cones; the most common form, about 1% of men; ΔE 0.8 from the original
Tritanopia#354447no blue cones; rare, and affects men and women equally; ΔE 10.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.16:1WCAG large text: AAA
Contrast with black, large text2.07:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.4Dim grey · ΔE 20.5Slate grey · ΔE 25.6Gray · ΔE 28.5Light slate grey · ΔE 28.6Black · ΔE 30.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#534D3B
Analogous#3B4D53, #413B53
Triadic#533B41, #41533B
Split complementary#53413B, #4D533B
Tetradic#533B4D, #534D3B, #3B5341

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9FA6BB
Lighter +30%#818AA6
Lighter +20%#65708F
Lighter +10%#505871
Darker −10%#262A35
Darker −20%#111217
Darker −30%#000000
Darker −40%#000000
More saturated +25%#293865
Less saturated −25%#474747

Channel breakdown

R59
G65
B83
Red59 (23.1%)
Green65 (25.5%)
Blue83 (32.5%)
Hue225°
Saturation (HSL)16.9%
Lightness27.84%
Dominant channelBlue
Hex per channelR 3B · G 41 · B 53

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Every value on this page was computed from “3b4153” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.