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Recognised as Colour

#174C4B

  • #174C4B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#174C4B is a cyan with RGB values 23, 76, 75 and HSL 179°, 54%, 19%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#174C4B#174C4B
HEX#174C4B
RGBrgb(23, 76, 75)
RGB (0–1)0.0902, 0.298, 0.2941
RGB percentages9%, 29.8%, 29.4%
HSLhsl(178.9, 53.5%, 19.4%)
HSV / HSBhsv(178.9, 69.7%, 29.8%)
CMYK69.7%, 0%, 1.3%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,526,859
CSS custom property--colour: #174C4B;

Brightness & contrast

Relative luminance0.05859WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.67:1
Contrast with white9.67:1WCAG normal text: AAA
Contrast with black2.17:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#E8B3B4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#47484Bno red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#3F424Bno green cones; the most common form, about 1% of men; ΔE 18.3 from the original
Tritanopia#004E4Cno blue cones; rare, and affects men and women equally; ΔE 3.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.67:1WCAG large text: AAA
Contrast with black, large text2.17:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.1Teal · ΔE 22.7Dim grey · ΔE 23.6Dark cyan · ΔE 27.1Slate grey · ΔE 28.9Gray · ΔE 30.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.08, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C1718
Analogous#174C31, #17324C
Triadic#4B174C, #4C4B17
Split complementary#4C1732, #4C3117
Tetradic#31174C, #4C1718, #334C17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#60CFCD
Lighter +30%#3BC1BF
Lighter +20%#2F9A98
Lighter +10%#237372
Darker −10%#0B2524
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B5857
Less saturated −25%#23403F

Channel breakdown

R23
G76
B75
Red23 (9%)
Green76 (29.8%)
Blue75 (29.4%)
Hue178.87°
Saturation (HSL)53.54%
Lightness19.41%
Dominant channelGreen
Hex per channelR 17 · G 4C · B 4B

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Every value on this page was computed from “174c4b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.