Colour
#333A3D
- #333A3D
- Cyan
- Dark
- Nearest: Dark slate grey
#333A3D is a cyan with RGB values 51, 58, 61 and HSL 198°, 9%, 22%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#333A3D#333A3D
HEX#333A3D
RGBrgb(51, 58, 61)
RGB (0–1)0.2, 0.2275, 0.2392
RGB percentages20%, 22.7%, 23.9%
HSLhsl(198, 8.9%, 22%)
HSV / HSBhsv(198, 16.4%, 23.9%)
CMYK16.4%, 4.9%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,357,245
CSS custom property--colour: #333A3D;
Brightness & contrast
Relative luminance0.04067WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.58:1
Contrast with white11.58:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#CCC5C2
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.58:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3D3633
Analogous#333D3B, #33353D
Triadic#3D333A, #3A3D33
Split complementary#3D3335, #3D3B33
Tetradic#3B333D, #3D3633, #353D33
Tints, shades & saturation
Channel breakdown
R51
G58
B61
Red51 (20%)
Green58 (22.7%)
Blue61 (23.9%)
Hue198°
Saturation (HSL)8.93%
Lightness21.96%
Dominant channelBlue
Hex per channelR 33 · G 3A · B 3D
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