Colour

#66797C

#66797C
Cyan
Dark
Nearest: Slate grey

#66797C is a cyan with RGB values 102, 121, 124 and HSL 188°, 10%, 44%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#66797C#66797C

HEX#66797C

RGBrgb(102, 121, 124)

RGB (0–1)0.4, 0.4745, 0.4863

RGB percentages40%, 47.5%, 48.6%

HSLhsl(188.2, 9.7%, 44.3%)

HSV / HSBhsv(188.2, 17.7%, 48.6%)

CMYK17.7%, 2.4%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,715,772

CSS custom property--colour: #66797C;

Brightness & contrast

Relative luminance0.17955WCAG 2.x, 0 is black and 1 is white

Perceived brightness116 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.59:1

Contrast with white4.57:1WCAG normal text: AA

Contrast with black4.59:1WCAG normal text: AA

Greyscale equivalent#757575

Inverted#998683

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#76777Cno red cones; affects about 1% of men; ΔE 7 from the original

Deuteranopia#72747Cno green cones; the most common form, about 1% of men; ΔE 7.2 from the original

Tritanopia#607B7Ano blue cones; rare, and affects men and women equally; ΔE 3.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.57:1WCAG large text: AAA

Contrast with black, large text4.59:1WCAG large text: AAA

Named colours

Slate grey · ΔE 8.5 Gray · ΔE 8.5 Dim grey · ΔE 9 Light slate grey · ΔE 10.4 Cadetblue · ΔE 18.1 Dark slate grey · ΔE 19

Nearest named CSS colourSlate grey (#708090)ΔE 8.48, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7C6966

Analogous#667C74, #666E7C

Triadic#7C6679, #797C66

Split complementary#7C666E, #7C7466

Tetradic#74667C, #7C6966, #6E7C66

Tints, shades & saturation

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

Lighter +40%#D3DADB

Lighter +30%#B7C2C4

Lighter +20%#9BAAAD

Lighter +10%#7F9396

Darker −10%#4F5E60

Darker −20%#384244

Darker −30%#212728

Darker −40%#0A0C0C

More saturated +25%#4A8E98

Less saturated −25%#717171

Channel breakdown

R102

G121

B124

Red102 (40%)

Green121 (47.5%)

Blue124 (48.6%)

Hue188.18°

Saturation (HSL)9.73%

Lightness44.31%

Dominant channelBlue

Hex per channelR 66 · G 79 · B 7C

Keep nerding

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

#66797C

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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