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Recognised as Colour

#131B85

  • #131B85
  • Blue
  • Dark
  • Nearest: Midnight blue

#131B85 is a blue with RGB values 19, 27, 133 and HSL 236°, 75%, 30%. It is a dark colour, so white text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#131B85#131B85
HEX#131B85
RGBrgb(19, 27, 133)
RGB (0–1)0.0745, 0.1059, 0.5216
RGB percentages7.5%, 10.6%, 52.2%
HSLhsl(235.8, 75%, 29.8%)
HSV / HSBhsv(235.8, 85.7%, 52.2%)
CMYK85.7%, 79.7%, 0%, 47.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,252,229
CSS custom property--colour: #131B85;

Brightness & contrast

Relative luminance0.02616WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.79:1
Contrast with white13.79:1WCAG normal text: AAA
Contrast with black1.52:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#ECE47A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003388no red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#002783no green cones; the most common form, about 1% of men; ΔE 10.6 from the original
Tritanopia#003B4Fno blue cones; rare, and affects men and women equally; ΔE 62.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.79:1WCAG large text: AAA
Contrast with black, large text1.52:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.2Navy · ΔE 12.8Indigo · ΔE 15.3Dark blue · ΔE 16.6Rebecca purple · ΔE 19.3Dark slateblue · ΔE 23.8
Nearest named CSS colourMidnight blue (#191970)ΔE 11.2, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#857D13
Analogous#135485, #441385
Triadic#85131B, #1B8513
Split complementary#854413, #548513
Tetradic#851354, #857D13, #138544

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7880EC
Lighter +30%#4C56E5
Lighter +20%#202DDE
Lighter +10%#1924B2
Darker −10%#0D1258
Darker −20%#06092C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000B98
Less saturated −25%#262B72

Channel breakdown

R19
G27
B133
Red19 (7.5%)
Green27 (10.6%)
Blue133 (52.2%)
Hue235.79°
Saturation (HSL)75%
Lightness29.8%
Dominant channelBlue
Hex per channelR 13 · G 1B · B 85

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Every value on this page was computed from “131b85” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.