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Recognised as Colour

#2F3D40

  • #2F3D40
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#2F3D40 is a cyan with RGB values 47, 61, 64 and HSL 191°, 15%, 22%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F3D40#2F3D40
HEX#2F3D40
RGBrgb(47, 61, 64)
RGB (0–1)0.1843, 0.2392, 0.251
RGB percentages18.4%, 23.9%, 25.1%
HSLhsl(190.6, 15.3%, 21.8%)
HSV / HSBhsv(190.6, 26.6%, 25.1%)
CMYK26.6%, 4.7%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,095,872
CSS custom property--colour: #2F3D40;

Brightness & contrast

Relative luminance0.04312WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.28:1
Contrast with white11.28:1WCAG normal text: AAA
Contrast with black1.86:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#D0C2BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A3C40no red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#383A40no green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#2A3E3Eno blue cones; rare, and affects men and women equally; ΔE 3.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.28:1WCAG large text: AAA
Contrast with black, large text1.86:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.5Dim grey · ΔE 20.7Black · ΔE 25.4Slate grey · ΔE 29.1Gray · ΔE 29.6Light slate grey · ΔE 32.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.5, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#40322F
Analogous#2F403A, #2F3540
Triadic#402F3D, #3D402F
Split complementary#402F35, #403A2F
Tetradic#3A2F40, #40322F, #35402F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8FA7AC
Lighter +30%#719097
Lighter +20%#5A757B
Lighter +10%#45595D
Darker −10%#192123
Darker −20%#040505
Darker −30%#000000
Darker −40%#000000
More saturated +25%#21464E
Less saturated −25%#383838

Channel breakdown

R47
G61
B64
Red47 (18.4%)
Green61 (23.9%)
Blue64 (25.1%)
Hue190.59°
Saturation (HSL)15.32%
Lightness21.76%
Dominant channelBlue
Hex per channelR 2F · G 3D · B 40

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Every value on this page was computed from “2f3d40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.