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Recognised as Colour

#175A3F

  • #175A3F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#175A3F is a cyan with RGB values 23, 90, 63 and HSL 156°, 59%, 22%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#175A3F#175A3F
HEX#175A3F
RGBrgb(23, 90, 63)
RGB (0–1)0.0902, 0.3529, 0.2471
RGB percentages9%, 35.3%, 24.7%
HSLhsl(155.8, 59.3%, 22.2%)
HSV / HSBhsv(155.8, 74.4%, 35.3%)
CMYK74.4%, 0%, 30%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,530,431
CSS custom property--colour: #175A3F;

Brightness & contrast

Relative luminance0.07853WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.17:1
Contrast with white8.17:1WCAG normal text: AAA
Contrast with black2.57:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#E8A5C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#59533Dno red cones; affects about 1% of men; ΔE 26.8 from the original
Deuteranopia#504D41no green cones; the most common form, about 1% of men; ΔE 26.9 from the original
Tritanopia#005A53no blue cones; rare, and affects men and women equally; ΔE 12.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.17:1WCAG large text: AAA
Contrast with black, large text2.57:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 21.2Teal · ΔE 23.3Sea green · ΔE 23.8Dark olivegreen · ΔE 24.3Dark cyan · ΔE 26.5Dim grey · ΔE 31.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.21, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A1732
Analogous#175A1E, #17535A
Triadic#3F175A, #5A3F17
Split complementary#5A1753, #5A1E17
Tetradic#1E175A, #5A1732, #535A17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#65D8AA
Lighter +30%#3DCD93
Lighter +20%#2CAB78
Lighter +10%#21835B
Darker −10%#0D3123
Darker −20%#020906
Darker −30%#000000
Darker −40%#000000
More saturated +25%#096842
Less saturated −25%#254C3C

Channel breakdown

R23
G90
B63
Red23 (9%)
Green90 (35.3%)
Blue63 (24.7%)
Hue155.82°
Saturation (HSL)59.29%
Lightness22.16%
Dominant channelGreen
Hex per channelR 17 · G 5A · B 3F

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Every value on this page was computed from “175a3f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.