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Recognised as Colour

#217C78

  • #217C78
  • Cyan
  • Dark
  • Nearest: Teal

#217C78 is a cyan with RGB values 33, 124, 120 and HSL 177°, 58%, 31%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#217C78#217C78
HEX#217C78
RGBrgb(33, 124, 120)
RGB (0–1)0.1294, 0.4863, 0.4706
RGB percentages12.9%, 48.6%, 47.1%
HSLhsl(177.4, 58%, 30.8%)
HSV / HSBhsv(177.4, 73.4%, 48.6%)
CMYK73.4%, 0%, 3.2%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,194,552
CSS custom property--colour: #217C78;

Brightness & contrast

Relative luminance0.16095WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.98:1
Contrast with white4.98:1WCAG normal text: AA
Contrast with black4.22:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#DE8387

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#747578no red cones; affects about 1% of men; ΔE 27.2 from the original
Deuteranopia#676C79no green cones; the most common form, about 1% of men; ΔE 27.8 from the original
Tritanopia#00807Bno blue cones; rare, and affects men and women equally; ΔE 3.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.98:1WCAG large text: AAA
Contrast with black, large text4.22:1WCAG large text: AA

Named colours

Teal · ΔE 3.9Dark cyan · ΔE 7.4Cadetblue · ΔE 15.8Light seagreen · ΔE 21.6Dark slate grey · ΔE 21.8Slate grey · ΔE 25.7
Nearest named CSS colourTeal (#008080)ΔE 3.92, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C2125
Analogous#217C4B, #21537C
Triadic#78217C, #7C7821
Split complementary#7C2153, #7C4B21
Tetradic#4A217C, #7C2125, #527C21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#89E0DC
Lighter +30%#61D5D0
Lighter +20%#39CAC4
Lighter +10%#2CA49F
Darker −10%#165451
Darker −20%#0C2B2A
Darker −30%#010303
Darker −40%#000000
More saturated +25%#0D908A
Less saturated −25%#356866

Channel breakdown

R33
G124
B120
Red33 (12.9%)
Green124 (48.6%)
Blue120 (47.1%)
Hue177.36°
Saturation (HSL)57.96%
Lightness30.78%
Dominant channelGreen
Hex per channelR 21 · G 7C · B 78

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Every value on this page was computed from “217c78” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.