Colour

#57668A

#57668A
Blue
Dark
Nearest: Slate grey

#57668A is a blue with RGB values 87, 102, 138 and HSL 222°, 23%, 44%. 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

#57668A#57668A

HEX#57668A

RGBrgb(87, 102, 138)

RGB (0–1)0.3412, 0.4, 0.5412

RGB percentages34.1%, 40%, 54.1%

HSLhsl(222.4, 22.7%, 44.1%)

HSV / HSBhsv(222.4, 37%, 54.1%)

CMYK37%, 26.1%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,727,882

CSS custom property--colour: #57668A;

Brightness & contrast

Relative luminance0.13364WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.72:1

Contrast with white5.72:1WCAG normal text: AA

Contrast with black3.67:1WCAG normal text: Fail

Greyscale equivalent#656565

Inverted#A89975

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A698Cno red cones; affects about 1% of men; ΔE 1.4 from the original

Deuteranopia#556489no green cones; the most common form, about 1% of men; ΔE 1 from the original

Tritanopia#486D72no blue cones; rare, and affects men and women equally; ΔE 21.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.72:1WCAG large text: AAA

Contrast with black, large text3.67:1WCAG large text: AA

Named colours

Slate grey · ΔE 15.8 Steel blue · ΔE 16 Light slate grey · ΔE 17.5 Dim grey · ΔE 22 Gray · ΔE 24.3 Dark slate grey · ΔE 26.6

Nearest named CSS colourSlate grey (#708090)ΔE 15.79, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8A7B57

Analogous#57808A, #62578A

Triadic#8A5766, #668A57

Split complementary#8A6257, #7F8A57

Tetradic#8A5780, #8A7B57, #578A62

Tints, shades & saturation

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

Lighter +40%#CDD3E0

Lighter +30%#AEB7CC

Lighter +20%#8F9BB8

Lighter +10%#6F7FA5

Darker −10%#434F6B

Darker −20%#30384B

Darker −30%#1C212C

Darker −40%#080A0D

More saturated +25%#3B5AA6

Less saturated −25%#717171

Channel breakdown

R87

G102

B138

Red87 (34.1%)

Green102 (40%)

Blue138 (54.1%)

Hue222.35°

Saturation (HSL)22.67%

Lightness44.12%

Dominant channelBlue

Hex per channelR 57 · G 66 · B 8A

Keep nerding

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

#57668A

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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