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Recognised as Colour

#42484D

  • #42484D
  • Grey
  • Dark
  • Nearest: Dark slate grey

#42484D is a grey with RGB values 66, 72, 77 and HSL 207°, 8%, 28%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#42484D#42484D
HEX#42484D
RGBrgb(66, 72, 77)
RGB (0–1)0.2588, 0.2824, 0.302
RGB percentages25.9%, 28.2%, 30.2%
HSLhsl(207.3, 7.7%, 28%)
HSV / HSBhsv(207.3, 14.3%, 30.2%)
CMYK14.3%, 6.5%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,343,885
CSS custom property--colour: #42484D;

Brightness & contrast

Relative luminance0.06329WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.27:1
Contrast with white9.27:1WCAG normal text: AAA
Contrast with black2.27:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#BDB7B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#46484Dno red cones; affects about 1% of men; ΔE 1.7 from the original
Deuteranopia#45474Dno green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#3F494Ano blue cones; rare, and affects men and women equally; ΔE 3.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.27:1WCAG large text: AAA
Contrast with black, large text2.27:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.5Dim grey · ΔE 14.7Slate grey · ΔE 23.6Gray · ΔE 23.7Light slate grey · ΔE 26.7Black · ΔE 30.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.53, a distinctly different colour
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D4742
Analogous#424D4D, #42434D
Triadic#4D4248, #484D42
Split complementary#4D4243, #4D4D42
Tetradic#4D424D, #4D4742, #434D42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7AEB4
Lighter +30%#8C959C
Lighter +20%#717B84
Lighter +10%#5A6268
Darker −10%#2A2E32
Darker −20%#131516
Darker −30%#000000
Darker −40%#000000
More saturated +25%#304A5F
Less saturated −25%#484848

Channel breakdown

R66
G72
B77
Red66 (25.9%)
Green72 (28.2%)
Blue77 (30.2%)
Hue207.27°
Saturation (HSL)7.69%
Lightness28.04%
Dominant channelBlue
Hex per channelR 42 · G 48 · B 4D

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Every value on this page was computed from “42484d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.