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Recognised as Colour

#3F4237

  • #3F4237
  • Green
  • Dark
  • Nearest: Dark slate grey

#3F4237 is a green with RGB values 63, 66, 55 and HSL 76°, 9%, 24%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F4237#3F4237
HEX#3F4237
RGBrgb(63, 66, 55)
RGB (0–1)0.2471, 0.2588, 0.2157
RGB percentages24.7%, 25.9%, 21.6%
HSLhsl(76.4, 9.1%, 23.7%)
HSV / HSBhsv(76.4, 16.7%, 25.9%)
CMYK4.5%, 0%, 16.7%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,145,719
CSS custom property--colour: #3F4237;

Brightness & contrast

Relative luminance0.05229WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.26:1
Contrast with white10.26:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#C0BDC8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#444136no red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#434137no green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#40413Fno blue cones; rare, and affects men and women equally; ΔE 5.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.26:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.4Dim grey · ΔE 18.5Gray · ΔE 27.2Black · ΔE 28.3Slate grey · ΔE 30.6Dark olivegreen · ΔE 32.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.45, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3A3742
Analogous#424037, #3A4237
Triadic#373F42, #42373F
Split complementary#373A42, #403742
Tetradic#374240, #3A3742, #42373A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6AB9A
Lighter +30%#8E947E
Lighter +20%#747A65
Lighter +10%#5A5E4E
Darker −10%#242620
Darker −20%#0A0A09
Darker −30%#000000
Darker −40%#000000
More saturated +25%#465128
Less saturated −25%#3D3D3D

Channel breakdown

R63
G66
B55
Red63 (24.7%)
Green66 (25.9%)
Blue55 (21.6%)
Hue76.36°
Saturation (HSL)9.09%
Lightness23.73%
Dominant channelGreen
Hex per channelR 3F · G 42 · B 37

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Every value on this page was computed from “3f4237” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.