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Recognised as Colour

#176C8F

  • #176C8F
  • Cyan
  • Dark
  • Nearest: Steel blue

#176C8F is a cyan with RGB values 23, 108, 143 and HSL 198°, 72%, 33%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#176C8F#176C8F
HEX#176C8F
RGBrgb(23, 108, 143)
RGB (0–1)0.0902, 0.4235, 0.5608
RGB percentages9%, 42.4%, 56.1%
HSLhsl(197.5, 72.3%, 32.5%)
HSV / HSBhsv(197.5, 83.9%, 56.1%)
CMYK83.9%, 24.5%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,535,119
CSS custom property--colour: #176C8F;

Brightness & contrast

Relative luminance0.1289WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.87:1
Contrast with white5.87:1WCAG normal text: AA
Contrast with black3.58:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#E89370

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A6B91no red cones; affects about 1% of men; ΔE 15.5 from the original
Deuteranopia#4B608Eno green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#007578no blue cones; rare, and affects men and women equally; ΔE 22.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.87:1WCAG large text: AAA
Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Steel blue · ΔE 13.7Slate grey · ΔE 20.7Light slate grey · ΔE 22Dark slate grey · ΔE 25Teal · ΔE 25.4Dark cyan · ΔE 27.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.73, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8F3A17
Analogous#178F76, #17308F
Triadic#8F176C, #6C8F17
Split complementary#8F1730, #8F7617
Tetradic#76178F, #8F3A17, #308F17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86CEEC
Lighter +30%#5ABCE5
Lighter +20%#2FAADD
Lighter +10%#1E8DBB
Darker −10%#104B63
Darker −20%#092A37
Darker −30%#02080B
Darker −40%#000000
More saturated +25%#0275A4
Less saturated −25%#2C637A

Channel breakdown

R23
G108
B143
Red23 (9%)
Green108 (42.4%)
Blue143 (56.1%)
Hue197.5°
Saturation (HSL)72.29%
Lightness32.55%
Dominant channelBlue
Hex per channelR 17 · G 6C · B 8F

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Every value on this page was computed from “176c8f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.