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Recognised as Colour

#1BBD51

  • #1BBD51
  • Green
  • Dark
  • Nearest: Limegreen

#1BBD51 is a green with RGB values 27, 189, 81 and HSL 140°, 75%, 42%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Limegreen.

Colour values

#1BBD51#1BBD51
HEX#1BBD51
RGBrgb(27, 189, 81)
RGB (0–1)0.1059, 0.7412, 0.3176
RGB percentages10.6%, 74.1%, 31.8%
HSLhsl(140, 75%, 42.4%)
HSV / HSBhsv(140, 85.7%, 74.1%)
CMYK85.7%, 0%, 57.1%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,817,937
CSS custom property--colour: #1BBD51;

Brightness & contrast

Relative luminance0.37222WCAG 2.x, 0 is black and 1 is white
Perceived brightness148.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.44:1
Contrast with white2.49:1WCAG normal text: Fail
Contrast with black8.44:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#E442AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BFAB46no red cones; affects about 1% of men; ΔE 57.7 from the original
Deuteranopia#AEA05Ano green cones; the most common form, about 1% of men; ΔE 57.3 from the original
Tritanopia#00B9A5no blue cones; rare, and affects men and women equally; ΔE 47.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.49:1WCAG large text: Fail
Contrast with black, large text8.44:1WCAG large text: AAA

Named colours

Limegreen · ΔE 19.8Forest green · ΔE 20.8Medium seagreen · ΔE 23.2Medium spring green · ΔE 24.3Green · ΔE 24.4Light green · ΔE 25.2
Nearest named CSS colourLimegreen (#32CD32)ΔE 19.79, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BD1B87
Analogous#36BD1B, #1BBDA2
Triadic#511BBD, #BD511B
Split complementary#A21BBD, #BD1B36
Tetradic#1B36BD, #BD1B87, #BDA21B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B0F4C7
Lighter +30%#84EDA7
Lighter +20%#57E787
Lighter +10%#2AE167
Darker −10%#15903E
Darker −20%#0E642B
Darker −30%#083718
Darker −40%#020A04
More saturated +25%#00D848
Less saturated −25%#36A25A

Channel breakdown

R27
G189
B81
Red27 (10.6%)
Green189 (74.1%)
Blue81 (31.8%)
Hue140°
Saturation (HSL)75%
Lightness42.35%
Dominant channelGreen
Hex per channelR 1B · G BD · B 51

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Every value on this page was computed from “1bbd51” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.