Recognised as Colour
#1F17AF
- #1F17AF
- Blue
- Dark
- Nearest: Dark blue
#1F17AF is a blue with RGB values 31, 23, 175 and HSL 243°, 77%, 39%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#1F17AF#1F17AF
HEX#1F17AF
RGBrgb(31, 23, 175)
RGB (0–1)0.1216, 0.0902, 0.6863
RGB percentages12.2%, 9%, 68.6%
HSLhsl(243.2, 76.8%, 38.8%)
HSV / HSBhsv(243.2, 86.9%, 68.6%)
CMYK82.3%, 86.9%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,037,679
CSS custom property--colour: #1F17AF;
Brightness & contrast
Relative luminance0.03999WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.67:1
Contrast with white11.67:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#E0E850
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.67:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A7AF17
Analogous#175BAF, #6B17AF
Triadic#AF1F17, #17AF1F
Split complementary#AF6B17, #5BAF17
Tetradic#AF175B, #A7AF17, #17AF6B
Tints, shades & saturation
Channel breakdown
R31
G23
B175
Red31 (12.2%)
Green23 (9%)
Blue175 (68.6%)
Hue243.16°
Saturation (HSL)76.77%
Lightness38.82%
Dominant channelBlue
Hex per channelR 1F · G 17 · B AF
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