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Recognised as Colour

#404C47

  • #404C47
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#404C47 is a cyan with RGB values 64, 76, 71 and HSL 155°, 9%, 27%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#404C47#404C47
HEX#404C47
RGBrgb(64, 76, 71)
RGB (0–1)0.251, 0.298, 0.2784
RGB percentages25.1%, 29.8%, 27.8%
HSLhsl(155, 8.6%, 27.5%)
HSV / HSBhsv(155, 15.8%, 29.8%)
CMYK15.8%, 0%, 6.6%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,213,831
CSS custom property--colour: #404C47;

Brightness & contrast

Relative luminance0.06714WCAG 2.x, 0 is black and 1 is white
Perceived brightness72 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.96:1
Contrast with white8.96:1WCAG normal text: AAA
Contrast with black2.34:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#BFB3B8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B4A47no red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#494947no green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#3E4C4Ano blue cones; rare, and affects men and women equally; ΔE 2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.96:1WCAG large text: AAA
Contrast with black, large text2.34:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.7Dim grey · ΔE 14.6Gray · ΔE 23.3Slate grey · ΔE 25Light slate grey · ΔE 28Teal · ΔE 30.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.68, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C4045
Analogous#404C41, #404B4C
Triadic#47404C, #4C4740
Split complementary#4C404B, #4C4140
Tetradic#41404C, #4C4045, #4B4C40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A5B3AD
Lighter +30%#899C94
Lighter +20%#6F837B
Lighter +10%#576861
Darker −10%#29302D
Darker −20%#111513
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F5E4A
Less saturated −25%#464646

Channel breakdown

R64
G76
B71
Red64 (25.1%)
Green76 (29.8%)
Blue71 (27.8%)
Hue155°
Saturation (HSL)8.57%
Lightness27.45%
Dominant channelGreen
Hex per channelR 40 · G 4C · B 47

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Every value on this page was computed from “404c47” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.