Recognised as Colour
#1B97B3
- #1B97B3
- Cyan
- Dark
- Nearest: Cadetblue
#1B97B3 is a cyan with RGB values 27, 151, 179 and HSL 191°, 74%, 40%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Cadetblue.
Colour values
#1B97B3#1B97B3
HEX#1B97B3
RGBrgb(27, 151, 179)
RGB (0–1)0.1059, 0.5922, 0.702
RGB percentages10.6%, 59.2%, 70.2%
HSLhsl(191.1, 73.8%, 40.4%)
HSV / HSBhsv(191.1, 84.9%, 70.2%)
CMYK84.9%, 15.6%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,808,307
CSS custom property--colour: #1B97B3;
Brightness & contrast
Relative luminance0.25621WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.12:1
Contrast with white3.43:1WCAG normal text: Fail
Contrast with black6.12:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#E4684C
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.43:1WCAG large text: AA
Contrast with black, large text6.12:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B3371B
Analogous#1BB383, #1B4BB3
Triadic#B31B97, #97B31B
Split complementary#B31B4B, #B3831B
Tetradic#831BB3, #B3371B, #4BB31B
Tints, shades & saturation
Channel breakdown
R27
G151
B179
Red27 (10.6%)
Green151 (59.2%)
Blue179 (70.2%)
Hue191.05°
Saturation (HSL)73.79%
Lightness40.39%
Dominant channelBlue
Hex per channelR 1B · G 97 · B B3
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