Colour
#37179F
- #37179F
- Blue
- Dark
- Nearest: Dark blue
#37179F is a blue with RGB values 55, 23, 159 and HSL 254°, 75%, 36%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#37179F#37179F
HEX#37179F
RGBrgb(55, 23, 159)
RGB (0–1)0.2157, 0.0902, 0.6235
RGB percentages21.6%, 9%, 62.4%
HSLhsl(254.1, 74.7%, 35.7%)
HSV / HSBhsv(254.1, 85.5%, 62.4%)
CMYK65.4%, 85.5%, 0%, 37.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,610,527
CSS custom property--colour: #37179F;
Brightness & contrast
Relative luminance0.03928WCAG 2.x, 0 is black and 1 is white
Perceived brightness64 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.76:1
Contrast with white11.76:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#C8E860
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.76:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#7F9F17
Analogous#173B9F, #7B179F
Triadic#9F3717, #179F37
Split complementary#9F7B17, #3B9F17
Tetradic#9F173B, #7F9F17, #179F7B
Tints, shades & saturation
Channel breakdown
R55
G23
B159
Red55 (21.6%)
Green23 (9%)
Blue159 (62.4%)
Hue254.12°
Saturation (HSL)74.73%
Lightness35.69%
Dominant channelBlue
Hex per channelR 37 · G 17 · B 9F
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