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Recognised as Colour

#121B60

  • #121B60
  • Blue
  • Dark
  • Nearest: Midnight blue

#121B60 is a blue with RGB values 18, 27, 96 and HSL 233°, 68%, 22%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#121B60#121B60
HEX#121B60
RGBrgb(18, 27, 96)
RGB (0–1)0.0706, 0.1059, 0.3765
RGB percentages7.1%, 10.6%, 37.6%
HSLhsl(233.1, 68.4%, 22.4%)
HSV / HSBhsv(233.1, 81.3%, 37.6%)
CMYK81.3%, 71.9%, 0%, 62.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,186,656
CSS custom property--colour: #121B60;

Brightness & contrast

Relative luminance0.01757WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.54:1
Contrast with white15.54:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#EDE49F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002862no red cones; affects about 1% of men; ΔE 11.6 from the original
Deuteranopia#00205Fno green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#002E3Bno blue cones; rare, and affects men and women equally; ΔE 44.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.54:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.3Dark slateblue · ΔE 16.9Rebecca purple · ΔE 27.4Indigo · ΔE 31Navy · ΔE 33.1Slate blue · ΔE 37.2
Nearest named CSS colourMidnight blue (#191970)ΔE 11.34, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#605712
Analogous#124260, #301260
Triadic#60121B, #1B6012
Split complementary#603012, #426012
Tetradic#601242, #605712, #126030

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5D6CE1
Lighter +30%#3246D9
Lighter +20%#2233B6
Lighter +10%#1A278B
Darker −10%#0A0F35
Darker −20%#02030A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#04106E
Less saturated −25%#202652

Channel breakdown

R18
G27
B96
Red18 (7.1%)
Green27 (10.6%)
Blue96 (37.6%)
Hue233.08°
Saturation (HSL)68.42%
Lightness22.35%
Dominant channelBlue
Hex per channelR 12 · G 1B · B 60

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Every value on this page was computed from “121b60” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.