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Recognised as Colour

#121B44

  • #121B44
  • Blue
  • Dark
  • Nearest: Dark slateblue

#121B44 is a blue with RGB values 18, 27, 68 and HSL 229°, 58%, 17%. It is a dark colour, so white text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#121B44#121B44
HEX#121B44
RGBrgb(18, 27, 68)
RGB (0–1)0.0706, 0.1059, 0.2667
RGB percentages7.1%, 10.6%, 26.7%
HSLhsl(229.2, 58.1%, 16.9%)
HSV / HSBhsv(229.2, 73.5%, 26.7%)
CMYK73.5%, 60.3%, 0%, 73.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,186,628
CSS custom property--colour: #121B44;

Brightness & contrast

Relative luminance0.0133WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.59:1
Contrast with white16.59:1WCAG normal text: AAA
Contrast with black1.27:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#EDE4BB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#022145no red cones; affects about 1% of men; ΔE 7 from the original
Deuteranopia#001C43no green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#00252Cno blue cones; rare, and affects men and women equally; ΔE 28.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.59:1WCAG large text: AAA
Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.2Midnight blue · ΔE 30.2Black · ΔE 31.8Dark slate grey · ΔE 38.7Rebecca purple · ΔE 42.6Steel blue · ΔE 44.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#443B12
Analogous#123444, #221244
Triadic#44121B, #1B4412
Split complementary#442212, #344412
Tetradic#441234, #443B12, #124422

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5168D1
Lighter +30%#324BBD
Lighter +20%#273B95
Lighter +10%#1D2B6C
Darker −10%#070B1C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#07144F
Less saturated −25%#1D2239

Channel breakdown

R18
G27
B68
Red18 (7.1%)
Green27 (10.6%)
Blue68 (26.7%)
Hue229.2°
Saturation (HSL)58.14%
Lightness16.86%
Dominant channelBlue
Hex per channelR 12 · G 1B · B 44

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Every value on this page was computed from “121b44” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.