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Recognised as Colour

#1B1323

  • #1B1323
  • Violet
  • Dark
  • Nearest: Black

#1B1323 is a violet with RGB values 27, 19, 35 and HSL 270°, 30%, 11%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B1323#1B1323
HEX#1B1323
RGBrgb(27, 19, 35)
RGB (0–1)0.1059, 0.0745, 0.1373
RGB percentages10.6%, 7.5%, 13.7%
HSLhsl(270, 29.6%, 10.6%)
HSV / HSBhsv(270, 45.7%, 13.7%)
CMYK22.9%, 45.7%, 0%, 86.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,774,371
CSS custom property--colour: #1B1323;

Brightness & contrast

Relative luminance0.0082WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.04:1
Contrast with white18.04:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#E4ECDC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#101624no red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#111623no green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#1A1519no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.04:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 14.6Dark slate grey · ΔE 31.6Dim grey · ΔE 39.1Dark slateblue · ΔE 43.8Slate grey · ΔE 46.6Midnight blue · ΔE 47.1
Nearest named CSS colourBlack (#000000)ΔE 14.65, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B2313
Analogous#131323, #231323
Triadic#231B13, #13231B
Split complementary#232313, #132313
Tetradic#231313, #1B2313, #132323

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#815CA6
Lighter +30%#684986
Lighter +20%#4E3765
Lighter +10%#352544
Darker −10%#020102
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1B0C2A
Less saturated −25%#1B1A1C

Channel breakdown

R27
G19
B35
Red27 (10.6%)
Green19 (7.5%)
Blue35 (13.7%)
Hue270°
Saturation (HSL)29.63%
Lightness10.59%
Dominant channelBlue
Hex per channelR 1B · G 13 · B 23

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Every value on this page was computed from “1b1323” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.