Colour

#646D82

#646D82
Blue
Dark
Nearest: Slate grey

#646D82 is a blue with RGB values 100, 109, 130 and HSL 222°, 13%, 45%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#646D82#646D82

HEX#646D82

RGBrgb(100, 109, 130)

RGB (0–1)0.3922, 0.4275, 0.5098

RGB percentages39.2%, 42.7%, 51%

HSLhsl(222, 13%, 45.1%)

HSV / HSBhsv(222, 23.1%, 51%)

CMYK23.1%, 16.2%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,581,634

CSS custom property--colour: #646D82;

Brightness & contrast

Relative luminance0.15258WCAG 2.x, 0 is black and 1 is white

Perceived brightness109 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.18:1

Contrast with white5.18:1WCAG normal text: AA

Contrast with black4.05:1WCAG normal text: Fail

Greyscale equivalent#6D6D6D

Inverted#9B927D

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#676E83no red cones; affects about 1% of men; ΔE 0.9 from the original

Deuteranopia#646C81no green cones; the most common form, about 1% of men; ΔE 0.5 from the original

Tritanopia#5D7174no blue cones; rare, and affects men and women equally; ΔE 11.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.18:1WCAG large text: AAA

Contrast with black, large text4.05:1WCAG large text: AA

Named colours

Slate grey · ΔE 8.1 Light slate grey · ΔE 10.7 Dim grey · ΔE 12.9 Gray · ΔE 14.9 Steel blue · ΔE 21.3 Dark slate grey · ΔE 21.8

Nearest named CSS colourSlate grey (#708090)ΔE 8.06, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#827964

Analogous#647C82, #6A6482

Triadic#82646D, #6D8264

Split complementary#826A64, #7C8264

Tetradic#82647C, #827964, #64826A

Tints, shades & saturation

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

Lighter +40%#D4D7DE

Lighter +30%#B7BCC8

Lighter +20%#9AA1B2

Lighter +10%#7E879B

Darker −10%#4E5565

Darker −20%#383D48

Darker −30%#21242C

Darker −40%#0B0C0F

More saturated +25%#47619F

Less saturated −25%#737373

Channel breakdown

R100

G109

B130

Red100 (39.2%)

Green109 (42.7%)

Blue130 (51%)

Hue222°

Saturation (HSL)13.04%

Lightness45.1%

Dominant channelBlue

Hex per channelR 64 · G 6D · B 82

Keep nerding

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

#646D82

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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