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Recognised as Colour

#031B7A

  • #031B7A
  • Blue
  • Dark
  • Nearest: Midnight blue

#031B7A is a blue with RGB values 3, 27, 122 and HSL 228°, 95%, 25%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#031B7A#031B7A
HEX#031B7A
RGBrgb(3, 27, 122)
RGB (0–1)0.0118, 0.1059, 0.4784
RGB percentages1.2%, 10.6%, 47.8%
HSLhsl(227.9, 95.2%, 24.5%)
HSV / HSBhsv(227.9, 97.5%, 47.8%)
CMYK97.5%, 77.9%, 0%, 52.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer203,642
CSS custom property--colour: #031B7A;

Brightness & contrast

Relative luminance0.02208WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.57:1
Contrast with white14.57:1WCAG normal text: AAA
Contrast with black1.44:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#FCE485

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002F7Dno red cones; affects about 1% of men; ΔE 15.6 from the original
Deuteranopia#002378no green cones; the most common form, about 1% of men; ΔE 7.7 from the original
Tritanopia#003749no blue cones; rare, and affects men and women equally; ΔE 57.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.57:1WCAG large text: AAA
Contrast with black, large text1.44:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.5Navy · ΔE 18Indigo · ΔE 19.4Dark slateblue · ΔE 20.4Rebecca purple · ΔE 20.7Dark blue · ΔE 22.4
Nearest named CSS colourMidnight blue (#191970)ΔE 5.49, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7A6203
Analogous#03577A, #26037A
Triadic#7A031B, #1B7A03
Split complementary#7A2603, #577A03
Tetradic#7A0357, #7A6203, #037A26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4E71FB
Lighter +30%#1D49F9
Lighter +20%#0531DE
Lighter +10%#0426AC
Darker −10%#021048
Darker −20%#010516
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00197D
Less saturated −25%#13246A

Channel breakdown

R3
G27
B122
Red3 (1.2%)
Green27 (10.6%)
Blue122 (47.8%)
Hue227.9°
Saturation (HSL)95.2%
Lightness24.51%
Dominant channelBlue
Hex per channelR 03 · G 1B · B 7A

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Every value on this page was computed from “031b7a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.