Colour

#6689AB

#6689AB
Blue
Dark
Nearest: Light slate grey

#6689AB is a blue with RGB values 102, 137, 171 and HSL 210°, 29%, 54%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#6689AB#6689AB

HEX#6689AB

RGBrgb(102, 137, 171)

RGB (0–1)0.4, 0.5373, 0.6706

RGB percentages40%, 53.7%, 67.1%

HSLhsl(209.6, 29.1%, 53.5%)

HSV / HSBhsv(209.6, 40.4%, 67.1%)

CMYK40.4%, 19.9%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,719,915

CSS custom property--colour: #6689AB;

Brightness & contrast

Relative luminance0.23656WCAG 2.x, 0 is black and 1 is white

Perceived brightness132.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.73:1

Contrast with white3.66:1WCAG normal text: Fail

Contrast with black5.73:1WCAG normal text: AA

Greyscale equivalent#848484

Inverted#997654

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7C8AADno red cones; affects about 1% of men; ΔE 6.9 from the original

Deuteranopia#7382AAno green cones; the most common form, about 1% of men; ΔE 7.7 from the original

Tritanopia#4D9194no blue cones; rare, and affects men and women equally; ΔE 22 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.66:1WCAG large text: AA

Contrast with black, large text5.73:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 10.8 Steel blue · ΔE 10.9 Slate grey · ΔE 11.7 Gray · ΔE 22.2 Cadetblue · ΔE 22.5 Light steelblue · ΔE 23.7

Nearest named CSS colourLight slate grey (#778899)ΔE 10.77, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AB8866

Analogous#66ABAB, #6666AB

Triadic#AB6689, #89AB66

Split complementary#AB6666, #ABAB66

Tetradic#AB66AB, #AB8866, #66AB66

Tints, shades & saturation

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

Lighter +40%#EAEFF3

Lighter +30%#C9D5E1

Lighter +20%#A8BCCF

Lighter +10%#87A2BD

Darker −10%#4F6F8F

Darker −20%#3D566E

Darker −30%#2B3C4D

Darker −40%#18232D

More saturated +25%#4889C9

Less saturated −25%#84898D

Channel breakdown

R102

G137

B171

Red102 (40%)

Green137 (53.7%)

Blue171 (67.1%)

Hue209.57°

Saturation (HSL)29.11%

Lightness53.53%

Dominant channelBlue

Hex per channelR 66 · G 89 · B AB

Keep nerding

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

#6689AB

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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