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Recognised as Colour

#11B571

  • #11B571
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#11B571 is a cyan with RGB values 17, 181, 113 and HSL 155°, 83%, 39%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#11B571#11B571
HEX#11B571
RGBrgb(17, 181, 113)
RGB (0–1)0.0667, 0.7098, 0.4431
RGB percentages6.7%, 71%, 44.3%
HSLhsl(155.1, 82.8%, 38.8%)
HSV / HSBhsv(155.1, 90.6%, 71%)
CMYK90.6%, 0%, 37.6%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,160,561
CSS custom property--colour: #11B571;

Brightness & contrast

Relative luminance0.34359WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.87:1
Contrast with white2.67:1WCAG normal text: Fail
Contrast with black7.87:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#EE4A8E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B3A66Dno red cones; affects about 1% of men; ΔE 51 from the original
Deuteranopia#A29976no green cones; the most common form, about 1% of men; ΔE 51.9 from the original
Tritanopia#00B4A4no blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.67:1WCAG large text: Fail
Contrast with black, large text7.87:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 5.9Sea green · ΔE 20.3Medium aquamarine · ΔE 24.7Forest green · ΔE 25.9Light green · ΔE 26.1Medium spring green · ΔE 28.8
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 5.91, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B51155
Analogous#11B51F, #11A7B5
Triadic#7111B5, #B57111
Split complementary#B511A7, #B51F11
Tetradic#1F11B5, #B51155, #A7B511

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CF6D1
Lighter +30%#6EF1BB
Lighter +20%#3FEDA5
Lighter +10%#15E48E
Darker −10%#0D8654
Darker −20%#085837
Darker −30%#04291A
Darker −40%#000000
More saturated +25%#00C674
Less saturated −25%#2A9C6D

Channel breakdown

R17
G181
B113
Red17 (6.7%)
Green181 (71%)
Blue113 (44.3%)
Hue155.12°
Saturation (HSL)82.83%
Lightness38.82%
Dominant channelGreen
Hex per channelR 11 · G B5 · B 71

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Every value on this page was computed from “11b571” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.