Colour

#37373E

#37373E
Grey
Dark
Nearest: Dark slate grey

#37373E is a grey with RGB values 55, 55, 62 and HSL 240°, 6%, 23%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#37373E#37373E

HEX#37373E

RGBrgb(55, 55, 62)

RGB (0–1)0.2157, 0.2157, 0.2431

RGB percentages21.6%, 21.6%, 24.3%

HSLhsl(240, 6%, 22.9%)

HSV / HSBhsv(240, 11.3%, 24.3%)

CMYK11.3%, 11.3%, 0%, 75.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,618,622

CSS custom property--colour: #37373E;

Brightness & contrast

Relative luminance0.03892WCAG 2.x, 0 is black and 1 is white

Perceived brightness55.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.81:1

Contrast with white11.81:1WCAG normal text: AAA

Contrast with black1.78:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#C8C8C1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#35383Eno red cones; affects about 1% of men; ΔE 1.5 from the original

Deuteranopia#35373Eno green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#363839no blue cones; rare, and affects men and women equally; ΔE 4.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.81:1WCAG large text: AAA

Contrast with black, large text1.78:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.6 Dim grey · ΔE 21.6 Black · ΔE 23.8 Slate grey · ΔE 30.4 Gray · ΔE 30.6 Light slate grey · ΔE 33.5

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.59, a distinctly different colour

Hue familygrey

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3E3E37

Analogous#373B3E, #3B373E

Triadic#3E3737, #373E37

Split complementary#3E3B37, #3B3E37

Tetradic#3E373B, #3E3E37, #373E3B

Tints, shades & saturation

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

Lighter +40%#9B9BA6

Lighter +30%#80808E

Lighter +20%#676774

Lighter +10%#4F4F59

Darker −10%#1F1F23

Darker −20%#070708

Darker −30%#000000

Darker −40%#000000

More saturated +25%#28284D

Less saturated −25%#3B3B3B

Channel breakdown

R55

G55

B62

Red55 (21.6%)

Green55 (21.6%)

Blue62 (24.3%)

Hue240°

Saturation (HSL)5.98%

Lightness22.94%

Dominant channelBlue

Hex per channelR 37 · G 37 · B 3E

Keep nerding

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

#37373E

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

Nerdulate something else