Colour
#1C5759
- #1C5759
- Cyan
- Dark
- Nearest: Dark slate grey
#1C5759 is a cyan with RGB values 28, 87, 89 and HSL 182°, 52%, 23%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#1C5759#1C5759
HEX#1C5759
RGBrgb(28, 87, 89)
RGB (0–1)0.1098, 0.3412, 0.349
RGB percentages11%, 34.1%, 34.9%
HSLhsl(182, 52.1%, 22.9%)
HSV / HSBhsv(182, 68.5%, 34.9%)
CMYK68.5%, 2.2%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,857,369
CSS custom property--colour: #1C5759;
Brightness & contrast
Relative luminance0.07785WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.21:1
Contrast with white8.21:1WCAG normal text: AAA
Contrast with black2.56:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#E3A8A6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.21:1WCAG large text: AAA
Contrast with black, large text2.56:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#591E1C
Analogous#1C593D, #1C3959
Triadic#591C57, #57591C
Split complementary#591C39, #593C1C
Tetradic#3C1C59, #591E1C, #39591C
Tints, shades & saturation
Channel breakdown
R28
G87
B89
Red28 (11%)
Green87 (34.1%)
Blue89 (34.9%)
Hue181.97°
Saturation (HSL)52.14%
Lightness22.94%
Dominant channelBlue
Hex per channelR 1C · G 57 · B 59
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