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Recognised as Colour

#3A4142

  • #3A4142
  • Grey
  • Dark
  • Nearest: Dark slate grey

#3A4142 is a grey with RGB values 58, 65, 66 and HSL 188°, 6%, 24%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3A4142#3A4142
HEX#3A4142
RGBrgb(58, 65, 66)
RGB (0–1)0.2275, 0.2549, 0.2588
RGB percentages22.7%, 25.5%, 25.9%
HSLhsl(187.5, 6.5%, 24.3%)
HSV / HSBhsv(187.5, 12.1%, 25.9%)
CMYK12.1%, 1.5%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,817,794
CSS custom property--colour: #3A4142;

Brightness & contrast

Relative luminance0.05073WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.42:1
Contrast with white10.42:1WCAG normal text: AAA
Contrast with black2.01:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#C5BEBD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#404042no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#3E3F42no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#384241no blue cones; rare, and affects men and women equally; ΔE 1.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.42:1WCAG large text: AAA
Contrast with black, large text2.01:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.3Dim grey · ΔE 17.7Gray · ΔE 26.8Black · ΔE 27.1Slate grey · ΔE 27.4Light slate grey · ΔE 30.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.27, a distinctly different colour
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#423B3A
Analogous#3A423F, #3A3D42
Triadic#423A41, #41423A
Split complementary#423A3D, #423F3A
Tetradic#3F3A42, #423B3A, #3D423A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9EA8AA
Lighter +30%#839092
Lighter +20%#6A7678
Lighter +10%#525C5D
Darker −10%#222627
Darker −20%#0A0C0C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2B4D52
Less saturated −25%#3E3E3E

Channel breakdown

R58
G65
B66
Red58 (22.7%)
Green65 (25.5%)
Blue66 (25.9%)
Hue187.5°
Saturation (HSL)6.45%
Lightness24.31%
Dominant channelBlue
Hex per channelR 3A · G 41 · B 42

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Every value on this page was computed from “3a4142” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.