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Recognised as Colour

#121D30

  • #121D30
  • Blue
  • Dark
  • Nearest: Black

#121D30 is a blue with RGB values 18, 29, 48 and HSL 218°, 45%, 13%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#121D30#121D30
HEX#121D30
RGBrgb(18, 29, 48)
RGB (0–1)0.0706, 0.1137, 0.1882
RGB percentages7.1%, 11.4%, 18.8%
HSLhsl(218, 45.5%, 12.9%)
HSV / HSBhsv(218, 62.5%, 18.8%)
CMYK62.5%, 39.6%, 0%, 81.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,187,120
CSS custom property--colour: #121D30;

Brightness & contrast

Relative luminance0.01221WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.88:1
Contrast with white16.88:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#EDE2CF

Colour vision & accessibility

Protanopia#161E31no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#121C30no green cones; the most common form, about 1% of men; ΔE 1 from the original
Tritanopia#052124no blue cones; rare, and affects men and women equally; ΔE 14.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.88:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 17.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#302512
Analogous#122C30, #161230
Triadic#30121D, #1D3012
Split complementary#301612, #2C3012
Tetradic#30122C, #302512, #123016

Tints, shades & saturation

Lighter +40%#5078BE
Lighter +30%#3C609F
Lighter +20%#2E4A7A
Lighter +10%#203355
Darker −10%#04070B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A1B38
Less saturated −25%#1A1F28

Channel breakdown

R18
G29
B48
Red18 (7.1%)
Green29 (11.4%)
Blue48 (18.8%)
Hue218°
Saturation (HSL)45.45%
Lightness12.94%
Dominant channelBlue
Hex per channelR 12 · G 1D · B 30

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Every value on this page was computed from “121d30” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.