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Colour

#1D1642

  • #1D1642
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1D1642 is a blue with RGB values 29, 22, 66 and HSL 250°, 50%, 17%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1D1642#1D1642
HEX#1D1642
RGBrgb(29, 22, 66)
RGB (0–1)0.1137, 0.0863, 0.2588
RGB percentages11.4%, 8.6%, 25.9%
HSLhsl(249.5, 50%, 17.3%)
HSV / HSBhsv(249.5, 66.7%, 25.9%)
CMYK56.1%, 66.7%, 0%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,906,242
CSS custom property--colour: #1D1642;

Brightness & contrast

Relative luminance0.01228WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.86:1
Contrast with white16.86:1WCAG normal text: AAA
Contrast with black1.25:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#E2E9BD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001E43no red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#001C41no green cones; the most common form, about 1% of men; ΔE 10.5 from the original
Tritanopia#102029no blue cones; rare, and affects men and women equally; ΔE 28 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.86:1WCAG large text: AAA
Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 26.6Midnight blue · ΔE 27.4Black · ΔE 33.7Rebecca purple · ΔE 39.4Dark slate grey · ΔE 42.4Indigo · ΔE 44.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 26.65, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B4216
Analogous#162542, #331642
Triadic#421D16, #16421D
Split complementary#423316, #254216
Tetradic#421625, #3B4216, #164233

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6D5BC9
Lighter +30%#4F3CB5
Lighter +20%#3F2F8F
Lighter +10%#2E2368
Darker −10%#0C091C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#150B4D
Less saturated −25%#242137

Channel breakdown

R29
G22
B66
Red29 (11.4%)
Green22 (8.6%)
Blue66 (25.9%)
Hue249.55°
Saturation (HSL)50%
Lightness17.25%
Dominant channelBlue
Hex per channelR 1D · G 16 · B 42

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Every value on this page was computed from “1d1642” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.