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Recognised as Colour

#177F73

  • #177F73
  • Cyan
  • Dark
  • Nearest: Teal

#177F73 is a cyan with RGB values 23, 127, 115 and HSL 173°, 69%, 29%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#177F73#177F73
HEX#177F73
RGBrgb(23, 127, 115)
RGB (0–1)0.0902, 0.498, 0.451
RGB percentages9%, 49.8%, 45.1%
HSLhsl(173.1, 69.3%, 29.4%)
HSV / HSBhsv(173.1, 81.9%, 49.8%)
CMYK81.9%, 0%, 9.4%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,539,955
CSS custom property--colour: #177F73;

Brightness & contrast

Relative luminance0.16599WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.86:1
Contrast with white4.86:1WCAG normal text: AA
Contrast with black4.32:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#E8808C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#797773no red cones; affects about 1% of men; ΔE 31.2 from the original
Deuteranopia#6B6D74no green cones; the most common form, about 1% of men; ΔE 31.7 from the original
Tritanopia#00827Bno blue cones; rare, and affects men and women equally; ΔE 3.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.86:1WCAG large text: AAA
Contrast with black, large text4.32:1WCAG large text: AA

Named colours

Teal · ΔE 7.2Dark cyan · ΔE 8.7Cadetblue · ΔE 18.4Light seagreen · ΔE 19.8Sea green · ΔE 23.6Dark slate grey · ΔE 25.4
Nearest named CSS colourTeal (#008080)ΔE 7.25, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F1723
Analogous#177F3F, #17577F
Triadic#73177F, #7F7317
Split complementary#7F1757, #7F3F17
Tetradic#3F177F, #7F1723, #577F17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7BE7DB
Lighter +30%#50DFCF
Lighter +20%#27D5C1
Lighter +10%#1FAA9A
Darker −10%#0F544C
Darker −20%#072925
Darker −30%#000000
Darker −40%#000000
More saturated +25%#049281
Less saturated −25%#2A6C65

Channel breakdown

R23
G127
B115
Red23 (9%)
Green127 (49.8%)
Blue115 (45.1%)
Hue173.08°
Saturation (HSL)69.33%
Lightness29.41%
Dominant channelGreen
Hex per channelR 17 · G 7F · B 73

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Every value on this page was computed from “177f73” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.