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Recognised as Colour

#1BB771

  • #1BB771
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#1BB771 is a cyan with RGB values 27, 183, 113 and HSL 153°, 74%, 41%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#1BB771#1BB771
HEX#1BB771
RGBrgb(27, 183, 113)
RGB (0–1)0.1059, 0.7176, 0.4431
RGB percentages10.6%, 71.8%, 44.3%
HSLhsl(153.1, 74.3%, 41.2%)
HSV / HSBhsv(153.1, 85.2%, 71.8%)
CMYK85.2%, 0%, 38.3%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,816,433
CSS custom property--colour: #1BB771;

Brightness & contrast

Relative luminance0.35292WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.06:1
Contrast with white2.61:1WCAG normal text: Fail
Contrast with black8.06:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#E4488E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B6A86Cno red cones; affects about 1% of men; ΔE 51.2 from the original
Deuteranopia#A59B76no green cones; the most common form, about 1% of men; ΔE 52.1 from the original
Tritanopia#00B5A5no blue cones; rare, and affects men and women equally; ΔE 30.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.61:1WCAG large text: Fail
Contrast with black, large text8.06:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 6Sea green · ΔE 21Light green · ΔE 25Medium aquamarine · ΔE 25Forest green · ΔE 25.6Medium spring green · ΔE 28
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 6.03, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B71B61
Analogous#1BB723, #1BAFB7
Triadic#711BB7, #B7711B
Split complementary#B71BAF, #B7231B
Tetradic#231BB7, #B71B61, #AFB71B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABF3D3
Lighter +30%#7FECBB
Lighter +20%#52E6A4
Lighter +10%#26DF8C
Darker −10%#148B56
Darker −20%#0E5E3A
Darker −30%#07321F
Darker −40%#010503
More saturated +25%#01D174
Less saturated −25%#359D6E

Channel breakdown

R27
G183
B113
Red27 (10.6%)
Green183 (71.8%)
Blue113 (44.3%)
Hue153.08°
Saturation (HSL)74.29%
Lightness41.18%
Dominant channelGreen
Hex per channelR 1B · G B7 · B 71

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Every value on this page was computed from “1bb771” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.