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Recognised as Colour

#180A1C

  • #180A1C
  • Violet
  • Dark
  • Nearest: Black

#180A1C is a violet with RGB values 24, 10, 28 and HSL 287°, 47%, 7%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#180A1C#180A1C
HEX#180A1C
RGBrgb(24, 10, 28)
RGB (0–1)0.0941, 0.0392, 0.1098
RGB percentages9.4%, 3.9%, 11%
HSLhsl(286.7, 47.4%, 7.5%)
HSV / HSBhsv(286.7, 64.3%, 11%)
CMYK14.3%, 64.3%, 0%, 89%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,575,452
CSS custom property--colour: #180A1C;

Brightness & contrast

Relative luminance0.00495WCAG 2.x, 0 is black and 1 is white
Perceived brightness17.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.11:1
Contrast with white19.11:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#E7F5E3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#070F1Dno red cones; affects about 1% of men; ΔE 8.1 from the original
Deuteranopia#0B101Bno green cones; the most common form, about 1% of men; ΔE 8.2 from the original
Tritanopia#180C11no blue cones; rare, and affects men and women equally; ΔE 8.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.11:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail

Named colours

Black · ΔE 13.4Dark slate grey · ΔE 34.3Dim grey · ΔE 41.9Dark slateblue · ΔE 45.8Midnight blue · ΔE 48.1Slate grey · ΔE 49.7
Nearest named CSS colourBlack (#000000)ΔE 13.4, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0E1C0A
Analogous#0F0A1C, #1C0A17
Triadic#1C180A, #0A1C18
Split complementary#171C0A, #0A1C0F
Tetradic#1C0F0A, #0E1C0A, #0A171C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9940B2
Lighter +30%#79328D
Lighter +20%#582567
Lighter +10%#381742
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1B0521
Less saturated −25%#150F17

Channel breakdown

R24
G10
B28
Red24 (9.4%)
Green10 (3.9%)
Blue28 (11%)
Hue286.67°
Saturation (HSL)47.37%
Lightness7.45%
Dominant channelBlue
Hex per channelR 18 · G 0A · B 1C

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Every value on this page was computed from “180a1c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.