Nerdulator> put something in

Recognised as Colour

#178D82

  • #178D82
  • Cyan
  • Dark
  • Nearest: Dark cyan

#178D82 is a cyan with RGB values 23, 141, 130 and HSL 174°, 72%, 32%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#178D82#178D82
HEX#178D82
RGBrgb(23, 141, 130)
RGB (0–1)0.0902, 0.5529, 0.5098
RGB percentages9%, 55.3%, 51%
HSLhsl(174.4, 72%, 32.2%)
HSV / HSBhsv(174.4, 83.7%, 55.3%)
CMYK83.7%, 0%, 7.8%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,543,554
CSS custom property--colour: #178D82;

Brightness & contrast

Relative luminance0.20844WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.17:1
Contrast with white4.06:1WCAG normal text: Fail
Contrast with black5.17:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#E8727D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#858482no red cones; affects about 1% of men; ΔE 33.3 from the original
Deuteranopia#767983no green cones; the most common form, about 1% of men; ΔE 34.2 from the original
Tritanopia#009089no blue cones; rare, and affects men and women equally; ΔE 2.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.06:1WCAG large text: AA
Contrast with black, large text5.17:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 6.6Teal · ΔE 8.3Light seagreen · ΔE 14.2Cadetblue · ΔE 16.4Sea green · ΔE 24Medium turquoise · ΔE 25.1
Nearest named CSS colourDark cyan (#008B8B)ΔE 6.56, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D1722
Analogous#178D47, #175D8D
Triadic#82178D, #8D8217
Split complementary#8D175D, #8D4717
Tetradic#47178D, #8D1722, #5D8D17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#85EBE2
Lighter +30%#59E4D7
Lighter +20%#2DDDCC
Lighter +10%#1EB9AA
Darker −10%#10615A
Darker −20%#093531
Darker −30%#020909
Darker −40%#000000
More saturated +25%#03A293
Less saturated −25%#2B7971

Channel breakdown

R23
G141
B130
Red23 (9%)
Green141 (55.3%)
Blue130 (51%)
Hue174.41°
Saturation (HSL)71.95%
Lightness32.16%
Dominant channelGreen
Hex per channelR 17 · G 8D · B 82

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “178d82” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.