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Colour

#21DE39

  • #21DE39
  • Green
  • Light
  • Nearest: Limegreen

#21DE39 is a green with RGB values 33, 222, 57 and HSL 128°, 74%, 50%. It is a light colour, so black text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Limegreen.

Colour values

#21DE39#21DE39
HEX#21DE39
RGBrgb(33, 222, 57)
RGB (0–1)0.1294, 0.8706, 0.2235
RGB percentages12.9%, 87.1%, 22.4%
HSLhsl(127.6, 74.1%, 50%)
HSV / HSBhsv(127.6, 85.1%, 87.1%)
CMYK85.1%, 0%, 74.3%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,219,577
CSS custom property--colour: #21DE39;

Brightness & contrast

Relative luminance0.52861WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.1 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.57:1
Contrast with white1.81:1WCAG normal text: Fail
Contrast with black11.57:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#DE21C6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E2C816no red cones; affects about 1% of men; ΔE 68.8 from the original
Deuteranopia#CFBB4Bno green cones; the most common form, about 1% of men; ΔE 68 from the original
Tritanopia#00D8BEno blue cones; rare, and affects men and women equally; ΔE 68.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.81:1WCAG large text: Fail
Contrast with black, large text11.57:1WCAG large text: AAA

Named colours

Limegreen · ΔE 8.8Spring green · ΔE 20.5Lawn green · ΔE 24.2Lime · ΔE 24.8Chartreuse · ΔE 25.4Green yellow · ΔE 31
Nearest named CSS colourLimegreen (#32CD32)ΔE 8.76, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DE21C6
Analogous#68DE21, #21DE97
Triadic#3921DE, #DE3921
Split complementary#9721DE, #DE2168
Tetradic#2168DE, #DE21C6, #DE9721

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3F8D7
Lighter +30%#A6F2B0
Lighter +20%#7AEB88
Lighter +10%#4DE561
Darker −10%#1AB22E
Darker −20%#148522
Darker −30%#0D5917
Darker −40%#072C0B
More saturated +25%#01FE21
Less saturated −25%#41BE51

Channel breakdown

R33
G222
B57
Red33 (12.9%)
Green222 (87.1%)
Blue57 (22.4%)
Hue127.62°
Saturation (HSL)74.12%
Lightness50%
Dominant channelGreen
Hex per channelR 21 · G DE · B 39

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Every value on this page was computed from “21de39” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.