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Recognised as Colour

#1212BB

  • #1212BB
  • Blue
  • Dark
  • Nearest: Medium blue

#1212BB is a blue with RGB values 18, 18, 187 and HSL 240°, 82%, 40%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1212BB#1212BB
HEX#1212BB
RGBrgb(18, 18, 187)
RGB (0–1)0.0706, 0.0706, 0.7333
RGB percentages7.1%, 7.1%, 73.3%
HSLhsl(240, 82.4%, 40.2%)
HSV / HSBhsv(240, 90.4%, 73.3%)
CMYK90.4%, 90.4%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,184,443
CSS custom property--colour: #1212BB;

Brightness & contrast

Relative luminance0.04149WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.48:1
Contrast with white11.48:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#EDED44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0042BFno red cones; affects about 1% of men; ΔE 29.1 from the original
Deuteranopia#0030B8no green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#004F6Eno blue cones; rare, and affects men and women equally; ΔE 89.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.48:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Medium blue · ΔE 12.8Dark blue · ΔE 18.3Blue violet · ΔE 22.6Navy · ΔE 23.5Dark violet · ΔE 26.5Indigo · ΔE 29.9
Nearest named CSS colourMedium blue (#0000CD)ΔE 12.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBBB12
Analogous#1267BB, #6712BB
Triadic#BB1212, #12BB12
Split complementary#BB6712, #67BB12
Tetradic#BB1267, #BBBB12, #12BB67

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3A3F6
Lighter +30%#7474F2
Lighter +20%#4646ED
Lighter +10%#1717E9
Darker −10%#0E0E8C
Darker −20%#09095E
Darker −30%#05052F
Darker −40%#000001
More saturated +25%#0000CD
Less saturated −25%#2C2CA1

Channel breakdown

R18
G18
B187
Red18 (7.1%)
Green18 (7.1%)
Blue187 (73.3%)
Hue240°
Saturation (HSL)82.44%
Lightness40.2%
Dominant channelBlue
Hex per channelR 12 · G 12 · B BB

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Every value on this page was computed from “1212bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.