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Recognised as Colour

#123C72

  • #123C72
  • Blue
  • Dark
  • Nearest: Dark slateblue

#123C72 is a blue with RGB values 18, 60, 114 and HSL 214°, 73%, 26%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#123C72#123C72
HEX#123C72
RGBrgb(18, 60, 114)
RGB (0–1)0.0706, 0.2353, 0.4471
RGB percentages7.1%, 23.5%, 44.7%
HSLhsl(213.8, 72.7%, 25.9%)
HSV / HSBhsv(213.8, 84.2%, 44.7%)
CMYK84.2%, 47.4%, 0%, 55.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,195,122
CSS custom property--colour: #123C72;

Brightness & contrast

Relative luminance0.04575WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.97:1
Contrast with white10.97:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#EDC38D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F4174no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#093871no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#004951no blue cones; rare, and affects men and women equally; ΔE 34.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.97:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.7Steel blue · ΔE 29.4Midnight blue · ΔE 29.9Dark slate grey · ΔE 37.2Slate grey · ΔE 38Rebecca purple · ΔE 38.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#724812
Analogous#126C72, #181272
Triadic#72123C, #3C7212
Split complementary#721812, #6C7212
Tetradic#72126C, #724812, #127218

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#69A0E7
Lighter +30%#3D84E0
Lighter +20%#206ACA
Lighter +10%#19539E
Darker −10%#0B2546
Darker −20%#040E1A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#023A83
Less saturated −25%#233E62

Channel breakdown

R18
G60
B114
Red18 (7.1%)
Green60 (23.5%)
Blue114 (44.7%)
Hue213.75°
Saturation (HSL)72.73%
Lightness25.88%
Dominant channelBlue
Hex per channelR 12 · G 3C · B 72

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Every value on this page was computed from “123c72” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.