Colour

#668AC7

#668AC7
Blue
Dark
Nearest: Steel blue

#668AC7 is a blue with RGB values 102, 138, 199 and HSL 218°, 46%, 59%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#668AC7#668AC7

HEX#668AC7

RGBrgb(102, 138, 199)

RGB (0–1)0.4, 0.5412, 0.7804

RGB percentages40%, 54.1%, 78%

HSLhsl(217.7, 46.4%, 59%)

HSV / HSBhsv(217.7, 48.7%, 78%)

CMYK48.7%, 30.7%, 0%, 22%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,720,199

CSS custom property--colour: #668AC7;

Brightness & contrast

Relative luminance0.25125WCAG 2.x, 0 is black and 1 is white

Perceived brightness137.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.03:1

Contrast with white3.49:1WCAG normal text: Fail

Contrast with black6.03:1WCAG normal text: AA

Greyscale equivalent#878787

Inverted#997538

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#738ECAno red cones; affects about 1% of men; ΔE 3.1 from the original

Deuteranopia#6885C6no green cones; the most common form, about 1% of men; ΔE 3.7 from the original

Tritanopia#3C97A0no blue cones; rare, and affects men and women equally; ΔE 36.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.49:1WCAG large text: AA

Contrast with black, large text6.03:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10.2 Cornflower blue · ΔE 15.4 Light slate grey · ΔE 25.3 Slate grey · ΔE 26.1 Deep skyblue · ΔE 27.7 Light skyblue · ΔE 28

Nearest named CSS colourSteel blue (#4682B4)ΔE 10.19, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C7A366

Analogous#66BAC7, #7366C7

Triadic#C7668A, #8AC766

Split complementary#C77366, #BAC766

Tetradic#C766BA, #C7A366, #66C773

Tints, shades & saturation

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

Lighter +40%#FBFCFE

Lighter +30%#D6E0F0

Lighter +20%#B1C3E2

Lighter +10%#8BA7D5

Darker −10%#436EB7

Darker −20%#355892

Darker −30%#28416C

Darker −40%#1A2B47

More saturated +25%#4C83E1

Less saturated −25%#8091AD

Channel breakdown

R102

G138

B199

Red102 (40%)

Green138 (54.1%)

Blue199 (78%)

Hue217.73°

Saturation (HSL)46.41%

Lightness59.02%

Dominant channelBlue

Hex per channelR 66 · G 8A · B C7

Keep nerding

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

#668AC7

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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