Recognised as Colour
#05403F
- #05403F
- Cyan
- Dark
- Nearest: Dark slate grey
#05403F is a cyan with RGB values 5, 64, 63 and HSL 179°, 86%, 14%. 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
#05403F#05403F
HEX#05403F
RGBrgb(5, 64, 63)
RGB (0–1)0.0196, 0.251, 0.2471
RGB percentages2%, 25.1%, 24.7%
HSLhsl(179, 85.5%, 13.5%)
HSV / HSBhsv(179, 92.2%, 25.1%)
CMYK92.2%, 0%, 1.6%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer344,127
CSS custom property--colour: #05403F;
Brightness & contrast
Relative luminance0.04058WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.59:1
Contrast with white11.59:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FABFC0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.59:1WCAG 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#400506
Analogous#054022, #052340
Triadic#3F0540, #403F05
Split complementary#400523, #402205
Tetradic#220540, #400506, #234005
Tints, shades & saturation
Channel breakdown
R5
G64
B63
Red5 (2%)
Green64 (25.1%)
Blue63 (24.7%)
Hue178.98°
Saturation (HSL)85.51%
Lightness13.53%
Dominant channelGreen
Hex per channelR 05 · G 40 · B 3F
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