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Recognised as Colour

#1D1387

  • #1D1387
  • Blue
  • Dark
  • Nearest: Navy

#1D1387 is a blue with RGB values 29, 19, 135 and HSL 245°, 75%, 30%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Navy.

Colour values

#1D1387#1D1387
HEX#1D1387
RGBrgb(29, 19, 135)
RGB (0–1)0.1137, 0.0745, 0.5294
RGB percentages11.4%, 7.5%, 52.9%
HSLhsl(245.2, 75.3%, 30.2%)
HSV / HSBhsv(245.2, 85.9%, 52.9%)
CMYK78.5%, 85.9%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,905,543
CSS custom property--colour: #1D1387;

Brightness & contrast

Relative luminance0.02476WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.04:1
Contrast with white14.04:1WCAG normal text: AAA
Contrast with black1.5:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#E2EC78

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00318Ano red cones; affects about 1% of men; ΔE 21.4 from the original
Deuteranopia#002685no green cones; the most common form, about 1% of men; ΔE 14.6 from the original
Tritanopia#00394Fno blue cones; rare, and affects men and women equally; ΔE 66.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.04:1WCAG large text: AAA
Contrast with black, large text1.5:1WCAG large text: Fail

Named colours

Navy · ΔE 7.6Dark blue · ΔE 11.1Indigo · ΔE 11.9Midnight blue · ΔE 16.2Rebecca purple · ΔE 20.5Dark slateblue · ΔE 28.6
Nearest named CSS colourNavy (#000080)ΔE 7.55, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7D8713
Analogous#134387, #571387
Triadic#871D13, #13871D
Split complementary#875713, #438713
Tetradic#871343, #7D8713, #138757

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#847AEC
Lighter +30%#5A4DE6
Lighter +20%#3120E0
Lighter +10%#2719B4
Darker −10%#130D5A
Darker −20%#0A062E
Darker −30%#000001
Darker −40%#000000
More saturated +25%#0D009A
Less saturated −25%#2D2674

Channel breakdown

R29
G19
B135
Red29 (11.4%)
Green19 (7.5%)
Blue135 (52.9%)
Hue245.17°
Saturation (HSL)75.32%
Lightness30.2%
Dominant channelBlue
Hex per channelR 1D · G 13 · B 87

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Every value on this page was computed from “1d1387” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.