Colour
#2800A8
- #2800A8
- Blue
- Dark
- Nearest: Dark blue
#2800A8 is a blue with RGB values 40, 0, 168 and HSL 254°, 100%, 33%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#2800A8#2800A8
HEX#2800A8
RGBrgb(40, 0, 168)
RGB (0–1)0.1569, 0, 0.6588
RGB percentages15.7%, 0%, 65.9%
HSLhsl(254.3, 100%, 32.9%)
HSV / HSBhsv(254.3, 100%, 65.9%)
CMYK76.2%, 100%, 0%, 34.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,621,608
CSS custom property--colour: #2800A8;
Brightness & contrast
Relative luminance0.03278WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.68:1
Contrast with white12.68:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#D7FF57
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.68:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#80A800
Analogous#002CA8, #7C00A8
Triadic#A82800, #00A828
Split complementary#A87C00, #2CA800
Tetradic#A8002C, #80A800, #00A87C
Tints, shades & saturation
Channel breakdown
R40
G0
B168
Red40 (15.7%)
Green0 (0%)
Blue168 (65.9%)
Hue254.29°
Saturation (HSL)100%
Lightness32.94%
Dominant channelBlue
Hex per channelR 28 · G 00 · B A8
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