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Recognised as Colour

#00A188

  • #00A188
  • Cyan
  • Dark
  • Nearest: Light seagreen

#00A188 is a cyan with RGB values 0, 161, 136 and HSL 171°, 100%, 32%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Light seagreen.

Colour values

#00A188#00A188
HEX#00A188
RGBrgb(0, 161, 136)
RGB (0–1)0, 0.6314, 0.5333
RGB percentages0%, 63.1%, 53.3%
HSLhsl(170.7, 100%, 31.6%)
HSV / HSBhsv(170.7, 100%, 63.1%)
CMYK100%, 0%, 15.5%, 36.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer41,352
CSS custom property--colour: #00A188;

Brightness & contrast

Relative luminance0.27267WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.45:1
Contrast with white3.25:1WCAG normal text: Fail
Contrast with black6.45:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#FF5E77

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9A9687no red cones; affects about 1% of men; ΔE 40.7 from the original
Deuteranopia#89898Ano green cones; the most common form, about 1% of men; ΔE 41.9 from the original
Tritanopia#00A39Ano blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.25:1WCAG large text: AA
Contrast with black, large text6.45:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 12.1Medium aquamarine · ΔE 17.6Dark cyan · ΔE 17.7Sea green · ΔE 18.7Teal · ΔE 20.3Medium turquoise · ΔE 21.4
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 12.11, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A10019
Analogous#00A137, #0069A1
Triadic#8800A1, #A18800
Split complementary#A10069, #A13700
Tetradic#3800A1, #A10019, #6AA100

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6EFFE8
Lighter +30%#3BFFE1
Lighter +20%#08FFD9
Lighter +10%#00D4B3
Darker −10%#006E5D
Darker −20%#003B32
Darker −30%#000807
Darker −40%#000000
More saturated +25%#00A188
Less saturated −25%#148D7A

Channel breakdown

R0
G161
B136
Red0 (0%)
Green161 (63.1%)
Blue136 (53.3%)
Hue170.68°
Saturation (HSL)100%
Lightness31.57%
Dominant channelGreen
Hex per channelR 00 · G A1 · B 88

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Every value on this page was computed from “00a188” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.