Colour

#2A3738

#2A3738
Cyan
Dark
Nearest: Dark slate grey

#2A3738 is a cyan with RGB values 42, 55, 56 and HSL 184°, 14%, 19%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2A3738#2A3738

HEX#2A3738

RGBrgb(42, 55, 56)

RGB (0–1)0.1647, 0.2157, 0.2196

RGB percentages16.5%, 21.6%, 22%

HSLhsl(184.3, 14.3%, 19.2%)

HSV / HSBhsv(184.3, 25%, 22%)

CMYK25%, 1.8%, 0%, 78%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,766,648

CSS custom property--colour: #2A3738;

Brightness & contrast

Relative luminance0.0351WCAG 2.x, 0 is black and 1 is white

Perceived brightness51.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.34:1

Contrast with white12.34:1WCAG normal text: AAA

Contrast with black1.7:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#D5C8C7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#353638no red cones; affects about 1% of men; ΔE 5.3 from the original

Deuteranopia#323438no green cones; the most common form, about 1% of men; ΔE 5.2 from the original

Tritanopia#263837no blue cones; rare, and affects men and women equally; ΔE 2.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.34:1WCAG large text: AAA

Contrast with black, large text1.7:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.5 Black · ΔE 22.7 Dim grey · ΔE 23.1 Slate grey · ΔE 32.1 Gray · ΔE 32.1 Light slate grey · ΔE 35.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.48, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#382B2A

Analogous#2A3832, #2A3038

Triadic#382A37, #37382A

Split complementary#382A30, #38322A

Tetradic#322A38, #382B2A, #30382A

Tints, shades & saturation

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

Lighter +40%#88A4A6

Lighter +30%#6C8D8F

Lighter +20%#567072

Lighter +10%#405455

Darker −10%#141A1B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1E4244

Less saturated −25%#313131

Channel breakdown

R42

G55

B56

Red42 (16.5%)

Green55 (21.6%)

Blue56 (22%)

Hue184.29°

Saturation (HSL)14.29%

Lightness19.22%

Dominant channelBlue

Hex per channelR 2A · G 37 · B 38

Keep nerding

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#2A3738

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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