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Recognised as Colour

#123D4A

  • #123D4A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#123D4A is a cyan with RGB values 18, 61, 74 and HSL 194°, 61%, 18%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#123D4A#123D4A
HEX#123D4A
RGBrgb(18, 61, 74)
RGB (0–1)0.0706, 0.2392, 0.2902
RGB percentages7.1%, 23.9%, 29%
HSLhsl(193.9, 60.9%, 18%)
HSV / HSBhsv(193.9, 75.7%, 29%)
CMYK75.7%, 17.6%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,195,338
CSS custom property--colour: #123D4A;

Brightness & contrast

Relative luminance0.0396WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.72:1
Contrast with white11.72:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#EDC2B5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#353B4Bno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#2D364Ano green cones; the most common form, about 1% of men; ΔE 11.9 from the original
Tritanopia#004141no blue cones; rare, and affects men and women equally; ΔE 10.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.72:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.7Dim grey · ΔE 26.1Black · ΔE 28.3Slate grey · ΔE 30.3Teal · ΔE 31.5Light slate grey · ΔE 33.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.66, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A1F12
Analogous#124A3B, #12214A
Triadic#4A123D, #3D4A12
Split complementary#4A1221, #4A3B12
Tetradic#3B124A, #4A1F12, #214A12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#53B7D5
Lighter +30%#30A2C5
Lighter +20%#26819C
Lighter +10%#1C5F73
Darker −10%#081B21
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#064356
Less saturated −25%#1E373F

Channel breakdown

R18
G61
B74
Red18 (7.1%)
Green61 (23.9%)
Blue74 (29%)
Hue193.93°
Saturation (HSL)60.87%
Lightness18.04%
Dominant channelBlue
Hex per channelR 12 · G 3D · B 4A

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Every value on this page was computed from “123d4a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.