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Recognised as Colour

#21B160

  • #21B160
  • Green
  • Dark
  • Nearest: Medium seagreen

#21B160 is a green with RGB values 33, 177, 96 and HSL 146°, 69%, 41%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#21B160#21B160
HEX#21B160
RGBrgb(33, 177, 96)
RGB (0–1)0.1294, 0.6941, 0.3765
RGB percentages12.9%, 69.4%, 37.6%
HSLhsl(146.3, 68.6%, 41.2%)
HSV / HSBhsv(146.3, 81.4%, 69.4%)
CMYK81.4%, 0%, 45.8%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,208,096
CSS custom property--colour: #21B160;

Brightness & contrast

Relative luminance0.32612WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.52:1
Contrast with white2.79:1WCAG normal text: Fail
Contrast with black7.52:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#DE4E9F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B1A25Ano red cones; affects about 1% of men; ΔE 50.9 from the original
Deuteranopia#A19666no green cones; the most common form, about 1% of men; ΔE 51.5 from the original
Tritanopia#00AE9Eno blue cones; rare, and affects men and women equally; ΔE 36.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.79:1WCAG large text: Fail
Contrast with black, large text7.52:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 9.6Forest green · ΔE 19.7Sea green · ΔE 22.3Light green · ΔE 24.8Green · ΔE 25.8Medium spring green · ΔE 28.5
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 9.57, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B12172
Analogous#2AB121, #21B1A8
Triadic#6021B1, #B16021
Split complementary#A821B1, #B1212A
Tetradic#212AB1, #B12172, #B1A821

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEF0CB
Lighter +30%#83E8AF
Lighter +20%#58E094
Lighter +10%#2DD878
Darker −10%#198649
Darker −20%#115B31
Darker −30%#09301A
Darker −40%#010503
More saturated +25%#07CB5D
Less saturated −25%#3B9763

Channel breakdown

R33
G177
B96
Red33 (12.9%)
Green177 (69.4%)
Blue96 (37.6%)
Hue146.25°
Saturation (HSL)68.57%
Lightness41.18%
Dominant channelGreen
Hex per channelR 21 · G B1 · B 60

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Every value on this page was computed from “21b160” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.