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Colour

#3A4742

  • #3A4742
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#3A4742 is a cyan with RGB values 58, 71, 66 and HSL 157°, 10%, 25%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3A4742#3A4742
HEX#3A4742
RGBrgb(58, 71, 66)
RGB (0–1)0.2275, 0.2784, 0.2588
RGB percentages22.7%, 27.8%, 25.9%
HSLhsl(156.9, 10.1%, 25.3%)
HSV / HSBhsv(156.9, 18.3%, 27.8%)
CMYK18.3%, 0%, 7%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,819,330
CSS custom property--colour: #3A4742;

Brightness & contrast

Relative luminance0.05799WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.72:1
Contrast with white9.72:1WCAG normal text: AAA
Contrast with black2.16:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#C5B8BD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#464542no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#444342no green cones; the most common form, about 1% of men; ΔE 6.7 from the original
Tritanopia#374745no blue cones; rare, and affects men and women equally; ΔE 2.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.72:1WCAG large text: AAA
Contrast with black, large text2.16:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.6Dim grey · ΔE 16.8Gray · ΔE 25.5Slate grey · ΔE 27Black · ΔE 29.6Light slate grey · ΔE 30
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.65, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#473A3F
Analogous#3A473C, #3A4647
Triadic#423A47, #47423A
Split complementary#473A46, #473C3A
Tetradic#3B3A47, #473A3F, #46473A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9EAFA9
Lighter +30%#829890
Lighter +20%#687F76
Lighter +10%#51635C
Darker −10%#232B28
Darker −20%#0C0F0E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2A5746
Less saturated −25%#414141

Channel breakdown

R58
G71
B66
Red58 (22.7%)
Green71 (27.8%)
Blue66 (25.9%)
Hue156.92°
Saturation (HSL)10.08%
Lightness25.29%
Dominant channelGreen
Hex per channelR 3A · G 47 · B 42

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Every value on this page was computed from “3a4742” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.