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Colour

#665A63

  • #665A63
  • Grey
  • Dark
  • Nearest: Dim grey

#665A63 is a grey with RGB values 102, 90, 99 and HSL 315°, 6%, 38%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#665A63#665A63
HEX#665A63
RGBrgb(102, 90, 99)
RGB (0–1)0.4, 0.3529, 0.3882
RGB percentages40%, 35.3%, 38.8%
HSLhsl(315, 6.3%, 37.6%)
HSV / HSBhsv(315, 11.8%, 40%)
CMYK0%, 11.8%, 2.9%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,707,811
CSS custom property--colour: #665A63;

Brightness & contrast

Relative luminance0.11038WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.55:1
Contrast with white6.55:1WCAG normal text: AA
Contrast with black3.21:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#99A59C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A5C63no red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#5D5E63no green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#675A5Dno blue cones; rare, and affects men and women equally; ΔE 3.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.55:1WCAG large text: AAA
Contrast with black, large text3.21:1WCAG large text: AA

Named colours

Dim grey · ΔE 8.8Gray · ΔE 15.8Slate grey · ΔE 17.4Light slate grey · ΔE 20.1Dark slate grey · ΔE 20.2Rosy brown · ΔE 28
Nearest named CSS colourDim grey (#696969)ΔE 8.85, clearly different but related
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A665D
Analogous#635A66, #665A5D
Triadic#63665A, #5A6366
Split complementary#5D665A, #5A6663
Tetradic#66635A, #5A665D, #5A5D66

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CAC2C8
Lighter +30%#B2A7AF
Lighter +20%#9A8C96
Lighter +10%#81727D
Darker −10%#4B4249
Darker −20%#302A2E
Darker −30%#151214
Darker −40%#000000
More saturated +25%#7E426F
Less saturated −25%#606060

Channel breakdown

R102
G90
B99
Red102 (40%)
Green90 (35.3%)
Blue99 (38.8%)
Hue315°
Saturation (HSL)6.25%
Lightness37.65%
Dominant channelRed
Hex per channelR 66 · G 5A · B 63

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Every value on this page was computed from “665a63” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.