Recognised as Colour
#213B2F
- #213B2F
- Cyan
- Dark
- Nearest: Dark slate grey
#213B2F is a cyan with RGB values 33, 59, 47 and HSL 152°, 28%, 18%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#213B2F#213B2F
HEX#213B2F
RGBrgb(33, 59, 47)
RGB (0–1)0.1294, 0.2314, 0.1843
RGB percentages12.9%, 23.1%, 18.4%
HSLhsl(152.3, 28.3%, 18%)
HSV / HSBhsv(152.3, 44.1%, 23.1%)
CMYK44.1%, 0%, 20.3%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,177,839
CSS custom property--colour: #213B2F;
Brightness & contrast
Relative luminance0.03656WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.13:1
Contrast with white12.13:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#DEC4D0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.13:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3B212D
Analogous#213B22, #213A3B
Triadic#2F213B, #3B2F21
Split complementary#3B213A, #3B2221
Tetradic#22213B, #3B212D, #3A3B21
Tints, shades & saturation
Channel breakdown
R33
G59
B47
Red33 (12.9%)
Green59 (23.1%)
Blue47 (18.4%)
Hue152.31°
Saturation (HSL)28.26%
Lightness18.04%
Dominant channelGreen
Hex per channelR 21 · G 3B · B 2F
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