Recognised as Colour
#28A7BB
- #28A7BB
- Cyan
- Dark
- Nearest: Cadetblue
#28A7BB is a cyan with RGB values 40, 167, 187 and HSL 188°, 65%, 45%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.
Colour values
#28A7BB#28A7BB
HEX#28A7BB
RGBrgb(40, 167, 187)
RGB (0–1)0.1569, 0.6549, 0.7333
RGB percentages15.7%, 65.5%, 73.3%
HSLhsl(188.2, 64.8%, 44.5%)
HSV / HSBhsv(188.2, 78.6%, 73.3%)
CMYK78.6%, 10.7%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,664,379
CSS custom property--colour: #28A7BB;
Brightness & contrast
Relative luminance0.31676WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.34:1
Contrast with white2.86:1WCAG normal text: Fail
Contrast with black7.34:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#D75844
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.86:1WCAG large text: Fail
Contrast with black, large text7.34:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#BB3C28
Analogous#28BB85, #285EBB
Triadic#BB28A7, #A7BB28
Split complementary#BB285E, #BB8628
Tetradic#8528BB, #BB3C28, #5DBB28
Tints, shades & saturation
Channel breakdown
R40
G167
B187
Red40 (15.7%)
Green167 (65.5%)
Blue187 (73.3%)
Hue188.16°
Saturation (HSL)64.76%
Lightness44.51%
Dominant channelBlue
Hex per channelR 28 · G A7 · B BB
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page