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Recognised as Colour

#12FF99

  • #12FF99
  • Cyan
  • Light
  • Nearest: Medium spring green

#12FF99 is a cyan with RGB values 18, 255, 153 and HSL 154°, 100%, 54%. It is a light colour, so black text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Medium spring green.

Colour values

#12FF99#12FF99
HEX#12FF99
RGBrgb(18, 255, 153)
RGB (0–1)0.0706, 1, 0.6
RGB percentages7.1%, 100%, 60%
HSLhsl(154.2, 100%, 53.5%)
HSV / HSBhsv(154.2, 92.9%, 100%)
CMYK92.9%, 0%, 40%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,245,081
CSS custom property--colour: #12FF99;

Brightness & contrast

Relative luminance0.73949WCAG 2.x, 0 is black and 1 is white
Perceived brightness202.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.79:1
Contrast with white1.33:1WCAG normal text: Fail
Contrast with black15.79:1WCAG normal text: AAA
Greyscale equivalent#C5C5C5
Inverted#ED0066

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FEE992no red cones; affects about 1% of men; ΔE 68.4 from the original
Deuteranopia#E6D8A0no green cones; the most common form, about 1% of men; ΔE 68.8 from the original
Tritanopia#00FCE6no blue cones; rare, and affects men and women equally; ΔE 42.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.33:1WCAG large text: Fail
Contrast with black, large text15.79:1WCAG large text: AAA

Named colours

Medium spring green · ΔE 3.3Spring green · ΔE 13Pale green · ΔE 24.1Light green · ΔE 25.9Limegreen · ΔE 31.4Medium seagreen · ΔE 35.2
Nearest named CSS colourMedium spring green (#00FA9A)ΔE 3.3, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF1278
Analogous#12FF23, #12EEFF
Triadic#9912FF, #FF9912
Split complementary#FF12EE, #FF2312
Tetradic#2312FF, #FF1278, #EEFF12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEFFF1
Lighter +30%#ABFFDB
Lighter +20%#78FFC5
Lighter +10%#45FFAF
Darker −10%#00DE7E
Darker −20%#00AB61
Darker −30%#007844
Darker −40%#004527
More saturated +25%#12FF99
Less saturated −25%#30E195

Channel breakdown

R18
G255
B153
Red18 (7.1%)
Green255 (100%)
Blue153 (60%)
Hue154.18°
Saturation (HSL)100%
Lightness53.53%
Dominant channelGreen
Hex per channelR 12 · G FF · B 99

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Every value on this page was computed from “12ff99” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.