Colour

#1B666E

#1B666E
Cyan
Dark
Nearest: Dark slate grey

#1B666E is a cyan with RGB values 27, 102, 110 and HSL 186°, 61%, 27%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B666E#1B666E

HEX#1B666E

RGBrgb(27, 102, 110)

RGB (0–1)0.1059, 0.4, 0.4314

RGB percentages10.6%, 40%, 43.1%

HSLhsl(185.8, 60.6%, 26.9%)

HSV / HSBhsv(185.8, 75.5%, 43.1%)

CMYK75.5%, 7.3%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,795,694

CSS custom property--colour: #1B666E;

Brightness & contrast

Relative luminance0.10862WCAG 2.x, 0 is black and 1 is white

Perceived brightness87.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.62:1

Contrast with white6.62:1WCAG normal text: AA

Contrast with black3.17:1WCAG normal text: Fail

Greyscale equivalent#575757

Inverted#E49991

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5D626Fno red cones; affects about 1% of men; ΔE 20.7 from the original

Deuteranopia#51596Eno green cones; the most common form, about 1% of men; ΔE 21.5 from the original

Tritanopia#006B68no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.62:1WCAG large text: AAA

Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 13.3 Teal · ΔE 13.3 Dark cyan · ΔE 17.3 Slate grey · ΔE 21.8 Cadetblue · ΔE 22.1 Dim grey · ΔE 22.8

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.27, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#6E231B

Analogous#1B6E4D, #1B3C6E

Triadic#6E1B66, #666E1B

Split complementary#6E1B3C, #6E4D1B

Tetradic#4D1B6E, #6E231B, #3C6E1B

Tints, shades & saturation

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

Lighter +40%#77D4DE

Lighter +30%#4EC7D4

Lighter +20%#2FB2C0

Lighter +10%#258C97

Darker −10%#114045

Darker −20%#071A1C

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0A747F

Less saturated −25%#2C585D

Channel breakdown

R27

G102

B110

Red27 (10.6%)

Green102 (40%)

Blue110 (43.1%)

Hue185.78°

Saturation (HSL)60.58%

Lightness26.86%

Dominant channelBlue

Hex per channelR 1B · G 66 · B 6E

Keep nerding

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

#1B666E

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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