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Colour

#1D1521

  • #1D1521
  • Violet
  • Dark
  • Nearest: Black

#1D1521 is a violet with RGB values 29, 21, 33 and HSL 280°, 22%, 11%. It is a dark colour, so white text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1D1521#1D1521
HEX#1D1521
RGBrgb(29, 21, 33)
RGB (0–1)0.1137, 0.0824, 0.1294
RGB percentages11.4%, 8.2%, 12.9%
HSLhsl(280, 22.2%, 10.6%)
HSV / HSBhsv(280, 36.4%, 12.9%)
CMYK12.1%, 36.4%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,905,953
CSS custom property--colour: #1D1521;

Brightness & contrast

Relative luminance0.00907WCAG 2.x, 0 is black and 1 is white
Perceived brightness25.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.77:1
Contrast with white17.77:1WCAG normal text: AAA
Contrast with black1.18:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#E2EADE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#131721no red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#151821no green cones; the most common form, about 1% of men; ΔE 5.7 from the original
Tritanopia#1D1619no blue cones; rare, and affects men and women equally; ΔE 6.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.77:1WCAG large text: AAA
Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 12.8Dark slate grey · ΔE 29.9Dim grey · ΔE 37.5Slate grey · ΔE 45.7Dark slateblue · ΔE 46Gray · ΔE 46.4
Nearest named CSS colourBlack (#000000)ΔE 12.79, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#192115
Analogous#171521, #21151F
Triadic#211D15, #15211D
Split complementary#1F2115, #152117
Tetradic#211715, #192115, #151F21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8A659D
Lighter +30%#6F517F
Lighter +20%#543D5F
Lighter +10%#382940
Darker −10%#020102
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F0E28
Less saturated −25%#1B1B1B

Channel breakdown

R29
G21
B33
Red29 (11.4%)
Green21 (8.2%)
Blue33 (12.9%)
Hue280°
Saturation (HSL)22.22%
Lightness10.59%
Dominant channelBlue
Hex per channelR 1D · G 15 · B 21

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Every value on this page was computed from “1d1521” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.