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Colour

#123D47

  • #123D47
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#123D47 is a cyan with RGB values 18, 61, 71 and HSL 191°, 60%, 17%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#123D47#123D47
HEX#123D47
RGBrgb(18, 61, 71)
RGB (0–1)0.0706, 0.2392, 0.2784
RGB percentages7.1%, 23.9%, 27.8%
HSLhsl(191.3, 59.6%, 17.5%)
HSV / HSBhsv(191.3, 74.6%, 27.8%)
CMYK74.6%, 14.1%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,195,335
CSS custom property--colour: #123D47;

Brightness & contrast

Relative luminance0.03921WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.77:1
Contrast with white11.77:1WCAG normal text: AAA
Contrast with black1.78:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#EDC2B8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#363B48no red cones; affects about 1% of men; ΔE 12.4 from the original
Deuteranopia#2F3547no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#004140no blue cones; rare, and affects men and women equally; ΔE 9.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.77:1WCAG large text: AAA
Contrast with black, large text1.78:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.4Dim grey · ΔE 25.9Black · ΔE 27.8Slate grey · ΔE 30.7Teal · ΔE 30.7Light slate grey · ΔE 33.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.37, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#471C12
Analogous#124737, #122347
Triadic#47123D, #3D4712
Split complementary#471223, #473712
Tetradic#361247, #471C12, #234712

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#52BBD3
Lighter +30%#31A6C1
Lighter +20%#278398
Lighter +10%#1C6070
Darker −10%#081A1E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#074452
Less saturated −25%#1D363C

Channel breakdown

R18
G61
B71
Red18 (7.1%)
Green61 (23.9%)
Blue71 (27.8%)
Hue191.32°
Saturation (HSL)59.55%
Lightness17.45%
Dominant channelBlue
Hex per channelR 12 · G 3D · B 47

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Every value on this page was computed from “123d47” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.