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Recognised as Colour

#21C258

  • #21C258
  • Green
  • Dark
  • Nearest: Limegreen

#21C258 is a green with RGB values 33, 194, 88 and HSL 140°, 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 Limegreen.

Colour values

#21C258#21C258
HEX#21C258
RGBrgb(33, 194, 88)
RGB (0–1)0.1294, 0.7608, 0.3451
RGB percentages12.9%, 76.1%, 34.5%
HSLhsl(140.5, 70.9%, 44.5%)
HSV / HSBhsv(140.5, 83%, 76.1%)
CMYK83%, 0%, 54.6%, 23.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,212,440
CSS custom property--colour: #21C258;

Brightness & contrast

Relative luminance0.39611WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.92:1
Contrast with white2.35:1WCAG normal text: Fail
Contrast with black8.92:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#DE3DA7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C4B04Eno red cones; affects about 1% of men; ΔE 57.9 from the original
Deuteranopia#B2A460no green cones; the most common form, about 1% of men; ΔE 57.5 from the original
Tritanopia#00BEAAno blue cones; rare, and affects men and women equally; ΔE 46.5 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 text8.92:1WCAG large text: AAA

Named colours

Limegreen · ΔE 20.5Medium spring green · ΔE 22.4Forest green · ΔE 22.4Medium seagreen · ΔE 22.5Light green · ΔE 23.7Spring green · ΔE 25.1
Nearest named CSS colourLimegreen (#32CD32)ΔE 20.53, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C2218B
Analogous#3AC221, #21C2A9
Triadic#5821C2, #C25821
Split complementary#A921C2, #C2213A
Tetradic#213AC2, #C2218B, #C2A921

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBF4CF
Lighter +30%#90ECAF
Lighter +20%#64E590
Lighter +10%#39DD71
Darker −10%#1A9644
Darker −20%#126B30
Darker −30%#0B3F1D
Darker −40%#031409
More saturated +25%#05DE4F
Less saturated −25%#3DA661

Channel breakdown

R33
G194
B88
Red33 (12.9%)
Green194 (76.1%)
Blue88 (34.5%)
Hue140.5°
Saturation (HSL)70.93%
Lightness44.51%
Dominant channelGreen
Hex per channelR 21 · G C2 · B 58

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Every value on this page was computed from “21c258” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.