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Recognised as Colour

#1D3CDA

  • #1D3CDA
  • Blue
  • Dark
  • Nearest: Medium blue

#1D3CDA is a blue with RGB values 29, 60, 218 and HSL 230°, 77%, 48%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1D3CDA#1D3CDA
HEX#1D3CDA
RGBrgb(29, 60, 218)
RGB (0–1)0.1137, 0.2353, 0.8549
RGB percentages11.4%, 23.5%, 85.5%
HSLhsl(230.2, 76.5%, 48.4%)
HSV / HSBhsv(230.2, 86.7%, 85.5%)
CMYK86.7%, 72.5%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,916,122
CSS custom property--colour: #1D3CDA;

Brightness & contrast

Relative luminance0.08555WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.75:1
Contrast with white7.75:1WCAG normal text: AAA
Contrast with black2.71:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#E2C325

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005CDFno red cones; affects about 1% of men; ΔE 22.8 from the original
Deuteranopia#0049D7no green cones; the most common form, about 1% of men; ΔE 11.5 from the original
Tritanopia#006A88no blue cones; rare, and affects men and women equally; ΔE 86 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.75:1WCAG large text: AAA
Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Medium blue · ΔE 23.2Blue violet · ΔE 23.6Dark blue · ΔE 24.5Medium slateblue · ΔE 25Navy · ΔE 28.2Dark orchid · ΔE 28.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 23.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DABB1D
Analogous#1D9BDA, #5C1DDA
Triadic#DA1D3C, #3CDA1D
Split complementary#DA5C1D, #9BDA1D
Tetradic#DA1D9B, #DABB1D, #1DDA5C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBD2F8
Lighter +30%#9EACF2
Lighter +20%#7185EC
Lighter +10%#445EE6
Darker −10%#1730AD
Darker −20%#112380
Darker −30%#0B1753
Darker −40%#050A26
More saturated +25%#0029F7
Less saturated −25%#3C51BB

Channel breakdown

R29
G60
B218
Red29 (11.4%)
Green60 (23.5%)
Blue218 (85.5%)
Hue230.16°
Saturation (HSL)76.52%
Lightness48.43%
Dominant channelBlue
Hex per channelR 1D · G 3C · B DA

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Every value on this page was computed from “1d3cda” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.