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Recognised as Colour

#424D4D

  • #424D4D
  • Grey
  • Dark
  • Nearest: Dark slate grey

#424D4D is a grey with RGB values 66, 77, 77 and HSL 180°, 8%, 28%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#424D4D#424D4D
HEX#424D4D
RGBrgb(66, 77, 77)
RGB (0–1)0.2588, 0.302, 0.302
RGB percentages25.9%, 30.2%, 30.2%
HSLhsl(180, 7.7%, 28%)
HSV / HSBhsv(180, 14.3%, 30.2%)
CMYK14.3%, 0%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,345,165
CSS custom property--colour: #424D4D;

Brightness & contrast

Relative luminance0.07002WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.75:1
Contrast with white8.75:1WCAG normal text: AAA
Contrast with black2.4:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#BDB2B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B4C4Dno red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#494A4Dno green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#3F4E4Dno blue cones; rare, and affects men and women equally; ΔE 1.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.75:1WCAG large text: AAA
Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.7Dim grey · ΔE 13.4Gray · ΔE 22.3Slate grey · ΔE 23Light slate grey · ΔE 26Teal · ΔE 30.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.7, clearly different but related
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D4242
Analogous#424D48, #42484D
Triadic#4D424D, #4D4D42
Split complementary#4D4248, #4D4842
Tetradic#48424D, #4D4242, #484D42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7B4B4
Lighter +30%#8C9C9C
Lighter +20%#718484
Lighter +10%#5A6868
Darker −10%#2A3232
Darker −20%#131616
Darker −30%#000000
Darker −40%#000000
More saturated +25%#305F5F
Less saturated −25%#484848

Channel breakdown

R66
G77
B77
Red66 (25.9%)
Green77 (30.2%)
Blue77 (30.2%)
Hue180°
Saturation (HSL)7.69%
Lightness28.04%
Dominant channelGreen and Blue
Hex per channelR 42 · G 4D · B 4D

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Every value on this page was computed from “424d4d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.