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Recognised as Colour

#40686A

  • #40686A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#40686A is a cyan with RGB values 64, 104, 106 and HSL 183°, 25%, 33%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#40686A#40686A
HEX#40686A
RGBrgb(64, 104, 106)
RGB (0–1)0.251, 0.4078, 0.4157
RGB percentages25.1%, 40.8%, 41.6%
HSLhsl(182.9, 24.7%, 33.3%)
HSV / HSBhsv(182.9, 39.6%, 41.6%)
CMYK39.6%, 1.9%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,221,034
CSS custom property--colour: #40686A;

Brightness & contrast

Relative luminance0.12031WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.17:1
Contrast with white6.17:1WCAG normal text: AA
Contrast with black3.41:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#BF9795

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#63656Ano red cones; affects about 1% of men; ΔE 14.1 from the original
Deuteranopia#5B5F6Ano green cones; the most common form, about 1% of men; ΔE 14.5 from the original
Tritanopia#2F6B68no blue cones; rare, and affects men and women equally; ΔE 6.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.17:1WCAG large text: AAA
Contrast with black, large text3.41:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 10.3Dim grey · ΔE 14.9Slate grey · ΔE 16.9Teal · ΔE 17.2Gray · ΔE 19.1Light slate grey · ΔE 19.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.33, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A4240
Analogous#406A57, #40536A
Triadic#6A4068, #686A40
Split complementary#6A4053, #6A5740
Tetradic#57406A, #6A4240, #536A40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AACACC
Lighter +30%#8AB6B9
Lighter +20%#6BA3A5
Lighter +10%#53878A
Darker −10%#2D494A
Darker −20%#1A2A2A
Darker −30%#060A0B
Darker −40%#000000
More saturated +25%#2B7B7F
Less saturated −25%#555555

Channel breakdown

R64
G104
B106
Red64 (25.1%)
Green104 (40.8%)
Blue106 (41.6%)
Hue182.86°
Saturation (HSL)24.71%
Lightness33.33%
Dominant channelBlue
Hex per channelR 40 · G 68 · B 6A

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Every value on this page was computed from “40686a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.