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Recognised as Colour

#1B034C

  • #1B034C
  • Violet
  • Dark
  • Nearest: Midnight blue

#1B034C is a violet with RGB values 27, 3, 76 and HSL 260°, 92%, 15%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1B034C#1B034C
HEX#1B034C
RGBrgb(27, 3, 76)
RGB (0–1)0.1059, 0.0118, 0.298
RGB percentages10.6%, 1.2%, 29.8%
HSLhsl(259.7, 92.4%, 15.5%)
HSV / HSBhsv(259.7, 96.1%, 29.8%)
CMYK64.5%, 96.1%, 0%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,770,316
CSS custom property--colour: #1B034C;

Brightness & contrast

Relative luminance0.0082WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.7 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#0D0D0D
Inverted#E4FCB3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00184Eno red cones; affects about 1% of men; ΔE 16.6 from the original
Deuteranopia#00144Bno green cones; the most common form, about 1% of men; ΔE 14.6 from the original
Tritanopia#031B29no blue cones; rare, and affects men and women equally; ΔE 44.7 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

Midnight blue · ΔE 13.2Dark slateblue · ΔE 24.3Indigo · ΔE 27.3Rebecca purple · ΔE 28.7Navy · ΔE 30.1Purple · ΔE 35
Nearest named CSS colourMidnight blue (#191970)ΔE 13.25, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#344C03
Analogous#03104C, #40034C
Triadic#4C1B03, #034C1B
Split complementary#4C4003, #0F4C03
Tetradic#4C030F, #344C03, #034C40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A25F6
Lighter +30%#4F09DF
Lighter +20%#3E07AE
Lighter +10%#2C057D
Darker −10%#0A011B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1A004F
Less saturated −25%#1E0D42

Channel breakdown

R27
G3
B76
Red27 (10.6%)
Green3 (1.2%)
Blue76 (29.8%)
Hue259.73°
Saturation (HSL)92.41%
Lightness15.49%
Dominant channelBlue
Hex per channelR 1B · G 03 · B 4C

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Every value on this page was computed from “1b034c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.