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Recognised as Colour

#18959C

  • #18959C
  • Cyan
  • Dark
  • Nearest: Dark cyan

#18959C is a cyan with RGB values 24, 149, 156 and HSL 183°, 73%, 35%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#18959C#18959C
HEX#18959C
RGBrgb(24, 149, 156)
RGB (0–1)0.0941, 0.5843, 0.6118
RGB percentages9.4%, 58.4%, 61.2%
HSLhsl(183.2, 73.3%, 35.3%)
HSV / HSBhsv(183.2, 84.6%, 61.2%)
CMYK84.6%, 4.5%, 0%, 38.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,611,164
CSS custom property--colour: #18959C;

Brightness & contrast

Relative luminance0.24089WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.82:1
Contrast with white3.61:1WCAG normal text: Fail
Contrast with black5.82:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#E76A63

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#898E9Dno red cones; affects about 1% of men; ΔE 30.5 from the original
Deuteranopia#78819Dno green cones; the most common form, about 1% of men; ΔE 32 from the original
Tritanopia#009B97no blue cones; rare, and affects men and women equally; ΔE 7.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.61:1WCAG large text: AA
Contrast with black, large text5.82:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 5.8Teal · ΔE 9Cadetblue · ΔE 11.6Light seagreen · ΔE 14.6Dark turquoise · ΔE 22.2Medium turquoise · ΔE 22.9
Nearest named CSS colourDark cyan (#008B8B)ΔE 5.83, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9C1F18
Analogous#189C61, #18539C
Triadic#9C1895, #959C18
Split complementary#9C1853, #9C6118
Tetradic#61189C, #9C1F18, #539C18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#92E9EE
Lighter +30%#66E1E7
Lighter +20%#39D8E1
Lighter +10%#1FBFC8
Darker −10%#116B70
Darker −20%#0A4144
Darker −30%#041617
Darker −40%#000000
More saturated +25%#01A9B3
Less saturated −25%#2E8186

Channel breakdown

R24
G149
B156
Red24 (9.4%)
Green149 (58.4%)
Blue156 (61.2%)
Hue183.18°
Saturation (HSL)73.33%
Lightness35.29%
Dominant channelBlue
Hex per channelR 18 · G 95 · B 9C

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Every value on this page was computed from “18959c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.