Recognised as Colour
#331FAF
- #331FAF
- Blue
- Dark
- Nearest: Dark blue
#331FAF is a blue with RGB values 51, 31, 175 and HSL 248°, 70%, 40%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#331FAF#331FAF
HEX#331FAF
RGBrgb(51, 31, 175)
RGB (0–1)0.2, 0.1216, 0.6863
RGB percentages20%, 12.2%, 68.6%
HSLhsl(248.3, 69.9%, 40.4%)
HSV / HSBhsv(248.3, 82.3%, 68.6%)
CMYK70.9%, 82.3%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,350,447
CSS custom property--colour: #331FAF;
Brightness & contrast
Relative luminance0.04779WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.74:1
Contrast with white10.74:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#CCE050
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.74:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#9BAF1F
Analogous#1F53AF, #7B1FAF
Triadic#AF331F, #1FAF33
Split complementary#AF7B1F, #53AF1F
Tetradic#AF1F53, #9BAF1F, #1FAF7B
Tints, shades & saturation
Channel breakdown
R51
G31
B175
Red51 (20%)
Green31 (12.2%)
Blue175 (68.6%)
Hue248.33°
Saturation (HSL)69.9%
Lightness40.39%
Dominant channelBlue
Hex per channelR 33 · G 1F · B AF
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