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Recognised as Colour

#1D368C

  • #1D368C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1D368C is a blue with RGB values 29, 54, 140 and HSL 226°, 66%, 33%. 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 slateblue.

Colour values

#1D368C#1D368C
HEX#1D368C
RGBrgb(29, 54, 140)
RGB (0–1)0.1137, 0.2118, 0.549
RGB percentages11.4%, 21.2%, 54.9%
HSLhsl(226.5, 65.7%, 33.1%)
HSV / HSBhsv(226.5, 79.3%, 54.9%)
CMYK79.3%, 61.4%, 0%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,914,508
CSS custom property--colour: #1D368C;

Brightness & contrast

Relative luminance0.04793WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.72:1
Contrast with white10.72:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#E2C973

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00438Fno red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#00398Ano green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#004C5Bno blue cones; rare, and affects men and women equally; ΔE 52.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.72:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.9Midnight blue · ΔE 13.2Rebecca purple · ΔE 20.8Slate blue · ΔE 24.1Royal blue · ΔE 26.4Indigo · ΔE 28.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.94, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C731D
Analogous#1D6E8C, #3B1D8C
Triadic#8C1D36, #368C1D
Split complementary#8C3B1D, #6E8C1D
Tetradic#8C1D6E, #8C731D, #1D8C3B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8EA2E7
Lighter +30%#637FDF
Lighter +20%#395CD6
Lighter +10%#2646B6
Darker −10%#142662
Darker −20%#0B1538
Darker −30%#03050D
Darker −40%#000000
More saturated +25%#082AA1
Less saturated −25%#324277

Channel breakdown

R29
G54
B140
Red29 (11.4%)
Green54 (21.2%)
Blue140 (54.9%)
Hue226.49°
Saturation (HSL)65.68%
Lightness33.14%
Dominant channelBlue
Hex per channelR 1D · G 36 · B 8C

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Every value on this page was computed from “1d368c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.