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Recognised as Colour

#21A449

  • #21A449
  • Green
  • Dark
  • Nearest: Forest green

#21A449 is a green with RGB values 33, 164, 73 and HSL 138°, 66%, 39%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Forest green.

Colour values

#21A449#21A449
HEX#21A449
RGBrgb(33, 164, 73)
RGB (0–1)0.1294, 0.6431, 0.2863
RGB percentages12.9%, 64.3%, 28.6%
HSLhsl(138.3, 66.5%, 38.6%)
HSV / HSBhsv(138.3, 79.9%, 64.3%)
CMYK79.9%, 0%, 55.5%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,204,745
CSS custom property--colour: #21A449;

Brightness & contrast

Relative luminance0.27355WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.47:1
Contrast with white3.25:1WCAG normal text: Fail
Contrast with black6.47:1WCAG normal text: AA
Greyscale equivalent#828282
Inverted#DE5BB6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A69541no red cones; affects about 1% of men; ΔE 50.3 from the original
Deuteranopia#978B50no green cones; the most common form, about 1% of men; ΔE 49.9 from the original
Tritanopia#00A190no blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.25:1WCAG large text: AA
Contrast with black, large text6.47:1WCAG large text: AAA

Named colours

Forest green · ΔE 12.4Medium seagreen · ΔE 15.3Green · ΔE 18.3Sea green · ΔE 23.5Dark green · ΔE 25.7Light green · ΔE 28.2
Nearest named CSS colourForest green (#228B22)ΔE 12.36, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A4217C
Analogous#3BA421, #21A48B
Triadic#4921A4, #A44921
Split complementary#8B21A4, #A4213A
Tetradic#213AA4, #A4217C, #A48B21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A4EDBA
Lighter +30%#7AE49A
Lighter +20%#4FDC7A
Lighter +10%#2ACE5C
Darker −10%#187A36
Darker −20%#104F23
Darker −30%#072510
Darker −40%#000000
More saturated +25%#08BD3F
Less saturated −25%#3A8B53

Channel breakdown

R33
G164
B73
Red33 (12.9%)
Green164 (64.3%)
Blue73 (28.6%)
Hue138.32°
Saturation (HSL)66.5%
Lightness38.63%
Dominant channelGreen
Hex per channelR 21 · G A4 · B 49

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Every value on this page was computed from “21a449” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.