Colour
#1F4145
- #1F4145
- Cyan
- Dark
- Nearest: Dark slate grey
#1F4145 is a cyan with RGB values 31, 65, 69 and HSL 186°, 38%, 20%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#1F4145#1F4145
HEX#1F4145
RGBrgb(31, 65, 69)
RGB (0–1)0.1216, 0.2549, 0.2706
RGB percentages12.2%, 25.5%, 27.1%
HSLhsl(186.3, 38%, 19.6%)
HSV / HSBhsv(186.3, 55.1%, 27.1%)
CMYK55.1%, 5.8%, 0%, 72.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,048,325
CSS custom property--colour: #1F4145;
Brightness & contrast
Relative luminance0.04502WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.05:1
Contrast with white11.05:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#E0BEBA
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.05:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#45231F
Analogous#1F4536, #1F2E45
Triadic#451F41, #41451F
Split complementary#451F2E, #45361F
Tetradic#361F45, #45231F, #2E451F
Tints, shades & saturation
Channel breakdown
R31
G65
B69
Red31 (12.2%)
Green65 (25.5%)
Blue69 (27.1%)
Hue186.32°
Saturation (HSL)38%
Lightness19.61%
Dominant channelBlue
Hex per channelR 1F · G 41 · B 45
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