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Recognised as Colour

#031156

  • #031156
  • Blue
  • Dark
  • Nearest: Midnight blue

#031156 is a blue with RGB values 3, 17, 86 and HSL 230°, 93%, 17%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#031156#031156
HEX#031156
RGBrgb(3, 17, 86)
RGB (0–1)0.0118, 0.0667, 0.3373
RGB percentages1.2%, 6.7%, 33.7%
HSLhsl(229.9, 93.3%, 17.5%)
HSV / HSBhsv(229.9, 96.5%, 33.7%)
CMYK96.5%, 80.2%, 0%, 66.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer201,046
CSS custom property--colour: #031156;

Brightness & contrast

Relative luminance0.01092WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.24:1
Contrast with white17.24:1WCAG normal text: AAA
Contrast with black1.22:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#FCEEA9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001F58no red cones; affects about 1% of men; ΔE 11.8 from the original
Deuteranopia#001755no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#002532no blue cones; rare, and affects men and women equally; ΔE 44.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.24:1WCAG large text: AAA
Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.4Dark slateblue · ΔE 21.1Rebecca purple · ΔE 29.5Indigo · ΔE 30.6Navy · ΔE 31.7Dark blue · ΔE 36.7
Nearest named CSS colourMidnight blue (#191970)ΔE 11.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#564803
Analogous#033B56, #1E0356
Triadic#560311, #115603
Split complementary#561F03, #3B5603
Tetradic#56033B, #564803, #03561F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2D4FF8
Lighter +30%#082EEA
Lighter +20%#0624B9
Lighter +10%#051B87
Darker −10%#010725
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000F59
Less saturated −25%#0E184B

Channel breakdown

R3
G17
B86
Red3 (1.2%)
Green17 (6.7%)
Blue86 (33.7%)
Hue229.88°
Saturation (HSL)93.26%
Lightness17.45%
Dominant channelBlue
Hex per channelR 03 · G 11 · B 56

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Every value on this page was computed from “hex 031156” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.