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Recognised as Colour

#09AA91

  • #09AA91
  • Cyan
  • Dark
  • Nearest: Light seagreen

#09AA91 is a cyan with RGB values 9, 170, 145 and HSL 171°, 90%, 35%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#09AA91#09AA91
HEX#09AA91
RGBrgb(9, 170, 145)
RGB (0–1)0.0353, 0.6667, 0.5686
RGB percentages3.5%, 66.7%, 56.9%
HSLhsl(170.7, 89.9%, 35.1%)
HSV / HSBhsv(170.7, 94.7%, 66.7%)
CMYK94.7%, 0%, 14.7%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer633,489
CSS custom property--colour: #09AA91;

Brightness & contrast

Relative luminance0.30852WCAG 2.x, 0 is black and 1 is white
Perceived brightness139.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.17:1
Contrast with white2.93:1WCAG normal text: Fail
Contrast with black7.17:1WCAG normal text: AAA
Greyscale equivalent#868686
Inverted#F6556E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A39F90no red cones; affects about 1% of men; ΔE 41.7 from the original
Deuteranopia#919193no green cones; the most common form, about 1% of men; ΔE 43.1 from the original
Tritanopia#00ADA3no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.93:1WCAG large text: Fail
Contrast with black, large text7.17:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 10.7Medium aquamarine · ΔE 15.1Medium turquoise · ΔE 18.9Dark cyan · ΔE 19.4Turquoise · ΔE 20.1Sea green · ΔE 20.8
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 10.75, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA0922
Analogous#09AA40, #0972AA
Triadic#9109AA, #AA9109
Split complementary#AA0972, #AA4009
Tetradic#4109AA, #AA0922, #73AA09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86F9E7
Lighter +30%#56F6DD
Lighter +20%#26F3D4
Lighter +10%#0CDABA
Darker −10%#067A68
Darker −20%#04493E
Darker −30%#011915
Darker −40%#000000
More saturated +25%#00B397
Less saturated −25%#1F9482

Channel breakdown

R9
G170
B145
Red9 (3.5%)
Green170 (66.7%)
Blue145 (56.9%)
Hue170.68°
Saturation (HSL)89.94%
Lightness35.1%
Dominant channelGreen
Hex per channelR 09 · G AA · B 91

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Every value on this page was computed from “09aa91” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.