Colour

#366D87

#366D87
Cyan
Dark
Nearest: Slate grey

#366D87 is a cyan with RGB values 54, 109, 135 and HSL 199°, 43%, 37%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#366D87#366D87

HEX#366D87

RGBrgb(54, 109, 135)

RGB (0–1)0.2118, 0.4275, 0.5294

RGB percentages21.2%, 42.7%, 52.9%

HSLhsl(199.3, 42.9%, 37.1%)

HSV / HSBhsv(199.3, 60%, 52.9%)

CMYK60%, 19.3%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,566,983

CSS custom property--colour: #366D87;

Brightness & contrast

Relative luminance0.13471WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.68:1

Contrast with white5.68:1WCAG normal text: AA

Contrast with black3.69:1WCAG normal text: Fail

Greyscale equivalent#636363

Inverted#C99278

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#606C88no red cones; affects about 1% of men; ΔE 12.9 from the original

Deuteranopia#556387no green cones; the most common form, about 1% of men; ΔE 14.3 from the original

Tritanopia#007476no blue cones; rare, and affects men and women equally; ΔE 19.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.68:1WCAG large text: AAA

Contrast with black, large text3.69:1WCAG large text: AA

Named colours

Slate grey · ΔE 15.3 Steel blue · ΔE 16.4 Light slate grey · ΔE 17.1 Dark slate grey · ΔE 20.3 Dim grey · ΔE 22.2 Teal · ΔE 22.5

Nearest named CSS colourSlate grey (#708090)ΔE 15.33, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#875036

Analogous#368778, #364587

Triadic#87366D, #6D8736

Split complementary#873645, #877836

Tetradic#783687, #875036, #458736

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#ABCDDE

Lighter +30%#87B8CF

Lighter +20%#63A2C0

Lighter +10%#458AAB

Darker −10%#275063

Darker −20%#19323E

Darker −30%#0A151A

Darker −40%#000000

More saturated +25%#1E759F

Less saturated −25%#4E656F

Channel breakdown

R54

G109

B135

Red54 (21.2%)

Green109 (42.7%)

Blue135 (52.9%)

Hue199.26°

Saturation (HSL)42.86%

Lightness37.06%

Dominant channelBlue

Hex per channelR 36 · G 6D · B 87

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#366D87

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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