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Recognised as Colour

#646D70

  • #646D70
  • Grey
  • Dark
  • Nearest: Dim grey

#646D70 is a grey with RGB values 100, 109, 112 and HSL 195°, 6%, 42%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#646D70#646D70
HEX#646D70
RGBrgb(100, 109, 112)
RGB (0–1)0.3922, 0.4275, 0.4392
RGB percentages39.2%, 42.7%, 43.9%
HSLhsl(195, 5.7%, 41.6%)
HSV / HSBhsv(195, 10.7%, 43.9%)
CMYK10.7%, 2.7%, 0%, 56.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,581,616
CSS custom property--colour: #646D70;

Brightness & contrast

Relative luminance0.14816WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.3:1
Contrast with white5.3:1WCAG normal text: AA
Contrast with black3.96:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#9B928F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B6C70no red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#696B70no green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#616E6Eno blue cones; rare, and affects men and women equally; ΔE 2.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.3:1WCAG large text: AAA
Contrast with black, large text3.96:1WCAG large text: AA

Named colours

Dim grey · ΔE 4.1Gray · ΔE 9.1Slate grey · ΔE 10.8Light slate grey · ΔE 13.4Dark slate grey · ΔE 16.8Cadetblue · ΔE 23.6
Nearest named CSS colourDim grey (#696969)ΔE 4.07, a close match
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#706764
Analogous#64706D, #646770
Triadic#70646D, #6D7064
Split complementary#706467, #706D64
Tetradic#6D6470, #706764, #677064

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDD1D3
Lighter +30%#B2B9BB
Lighter +20%#97A0A3
Lighter +10%#7D878A
Darker −10%#4C5355
Darker −20%#34393A
Darker −30%#1C1E1F
Darker −40%#040404
More saturated +25%#4A7A8B
Less saturated −25%#6A6A6A

Channel breakdown

R100
G109
B112
Red100 (39.2%)
Green109 (42.7%)
Blue112 (43.9%)
Hue195°
Saturation (HSL)5.66%
Lightness41.57%
Dominant channelBlue
Hex per channelR 64 · G 6D · B 70

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Every value on this page was computed from “646d70” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.