Colour
#003439
- #003439
- Cyan
- Dark
- Nearest: Dark slate grey
#003439 is a cyan with RGB values 0, 52, 57 and HSL 185°, 100%, 11%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#003439#003439
HEX#003439
RGBrgb(0, 52, 57)
RGB (0–1)0, 0.2039, 0.2235
RGB percentages0%, 20.4%, 22.4%
HSLhsl(185.3, 100%, 11.2%)
HSV / HSBhsv(185.3, 100%, 22.4%)
CMYK100%, 8.8%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,369
CSS custom property--colour: #003439;
Brightness & contrast
Relative luminance0.02751WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.55:1
Contrast with white13.55:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#292929
Inverted#FFCBC6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.55:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#390500
Analogous#003922, #001739
Triadic#390034, #343900
Split complementary#390017, #392100
Tetradic#220039, #390500, #183900
Tints, shades & saturation
Channel breakdown
R0
G52
B57
Red0 (0%)
Green52 (20.4%)
Blue57 (22.4%)
Hue185.26°
Saturation (HSL)100%
Lightness11.18%
Dominant channelBlue
Hex per channelR 00 · G 34 · B 39
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