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Colour

#666A75

  • #666A75
  • Grey
  • Dark
  • Nearest: Dim grey

#666A75 is a grey with RGB values 102, 106, 117 and HSL 224°, 7%, 43%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#666A75#666A75
HEX#666A75
RGBrgb(102, 106, 117)
RGB (0–1)0.4, 0.4157, 0.4588
RGB percentages40%, 41.6%, 45.9%
HSLhsl(224, 6.8%, 42.9%)
HSV / HSBhsv(224, 12.8%, 45.9%)
CMYK12.8%, 9.4%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,711,925
CSS custom property--colour: #666A75;

Brightness & contrast

Relative luminance0.14417WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.41:1
Contrast with white5.41:1WCAG normal text: AA
Contrast with black3.88:1WCAG normal text: Fail
Greyscale equivalent#6A6A6A
Inverted#99958A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#676B76no red cones; affects about 1% of men; ΔE 0.4 from the original
Deuteranopia#666975no green cones; the most common form, about 1% of men; ΔE 0.8 from the original
Tritanopia#636C6Dno blue cones; rare, and affects men and women equally; ΔE 6.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.41:1WCAG large text: AAA
Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Dim grey · ΔE 6.7Slate grey · ΔE 9.4Gray · ΔE 11Light slate grey · ΔE 12.4Dark slate grey · ΔE 18.8Dark grey · ΔE 25.3
Nearest named CSS colourDim grey (#696969)ΔE 6.73, clearly different but related
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#757166
Analogous#667275, #6A6675
Triadic#75666A, #6A7566
Split complementary#756A66, #727566
Tetradic#756672, #757166, #66756A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1D2D6
Lighter +30%#B5B8BF
Lighter +20%#9A9DA7
Lighter +10%#7F838F
Darker −10%#4E515A
Darker −20%#36393F
Darker −30%#1F2023
Darker −40%#070708
More saturated +25%#4B5D90
Less saturated −25%#6E6E6E

Channel breakdown

R102
G106
B117
Red102 (40%)
Green106 (41.6%)
Blue117 (45.9%)
Hue224°
Saturation (HSL)6.85%
Lightness42.94%
Dominant channelBlue
Hex per channelR 66 · G 6A · B 75

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Every value on this page was computed from “666a75” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.