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Recognised as Colour

#21C25B

  • #21C25B
  • Green
  • Dark
  • Nearest: Medium seagreen

#21C25B is a green with RGB values 33, 194, 91 and HSL 142°, 71%, 45%. It is a dark colour, so black text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#21C25B#21C25B
HEX#21C25B
RGBrgb(33, 194, 91)
RGB (0–1)0.1294, 0.7608, 0.3569
RGB percentages12.9%, 76.1%, 35.7%
HSLhsl(141.6, 70.9%, 44.5%)
HSV / HSBhsv(141.6, 83%, 76.1%)
CMYK83%, 0%, 53.1%, 23.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,212,443
CSS custom property--colour: #21C25B;

Brightness & contrast

Relative luminance0.39662WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.93:1
Contrast with white2.35:1WCAG normal text: Fail
Contrast with black8.93:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#DE3DA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C3B052no red cones; affects about 1% of men; ΔE 57.2 from the original
Deuteranopia#B2A463no green cones; the most common form, about 1% of men; ΔE 57.4 from the original
Tritanopia#00BEABno blue cones; rare, and affects men and women equally; ΔE 45.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.35:1WCAG large text: Fail
Contrast with black, large text8.93:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 21.2Medium spring green · ΔE 21.9Limegreen · ΔE 22Forest green · ΔE 22.4Light green · ΔE 23.2Pale green · ΔE 25.2
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 21.2, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C22188
Analogous#37C221, #21C2AC
Triadic#5B21C2, #C25B21
Split complementary#AC21C2, #C22137
Tetradic#2137C2, #C22188, #C2AC21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBF4D0
Lighter +30%#90ECB1
Lighter +20%#64E593
Lighter +10%#39DD74
Darker −10%#1A9647
Darker −20%#126B32
Darker −30%#0B3F1E
Darker −40%#031409
More saturated +25%#05DE53
Less saturated −25%#3DA663

Channel breakdown

R33
G194
B91
Red33 (12.9%)
Green194 (76.1%)
Blue91 (35.7%)
Hue141.61°
Saturation (HSL)70.93%
Lightness44.51%
Dominant channelGreen
Hex per channelR 21 · G C2 · B 5B

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Every value on this page was computed from “21c25b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.