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Recognised as Colour

#21C757

  • #21C757
  • Green
  • Dark
  • Nearest: Limegreen

#21C757 is a green with RGB values 33, 199, 87 and HSL 140°, 72%, 45%. It is a dark colour, so black text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Limegreen.

Colour values

#21C757#21C757
HEX#21C757
RGBrgb(33, 199, 87)
RGB (0–1)0.1294, 0.7804, 0.3412
RGB percentages12.9%, 78%, 34.1%
HSLhsl(139.5, 71.6%, 45.5%)
HSV / HSBhsv(139.5, 83.4%, 78%)
CMYK83.4%, 0%, 56.3%, 22%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,213,719
CSS custom property--colour: #21C757;

Brightness & contrast

Relative luminance0.41858WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.37:1
Contrast with white2.24:1WCAG normal text: Fail
Contrast with black9.37:1WCAG normal text: AAA
Greyscale equivalent#9C9C9C
Inverted#DE38A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9B54Cno red cones; affects about 1% of men; ΔE 59.1 from the original
Deuteranopia#B7A860no green cones; the most common form, about 1% of men; ΔE 59.3 from the original
Tritanopia#00C3AEno blue cones; rare, and affects men and women equally; ΔE 48.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.24:1WCAG large text: Fail
Contrast with black, large text9.37:1WCAG large text: AAA

Named colours

Limegreen · ΔE 17.6Medium spring green · ΔE 21.6Spring green · ΔE 22.4Light green · ΔE 24.4Forest green · ΔE 24.5Pale green · ΔE 25.7
Nearest named CSS colourLimegreen (#32CD32)ΔE 17.62, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C72191
Analogous#3EC721, #21C7AA
Triadic#5721C7, #C75721
Split complementary#AA21C7, #C7213E
Tetradic#213EC7, #C72191, #C7AA21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C0F4D1
Lighter +30%#94EDB1
Lighter +20%#68E691
Lighter +10%#3CDF71
Darker −10%#1A9B44
Darker −20%#127031
Darker −30%#0B441E
Darker −40%#04180B
More saturated +25%#04E44D
Less saturated −25%#3EAA61

Channel breakdown

R33
G199
B87
Red33 (12.9%)
Green199 (78%)
Blue87 (34.1%)
Hue139.52°
Saturation (HSL)71.55%
Lightness45.49%
Dominant channelGreen
Hex per channelR 21 · G C7 · B 57

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Every value on this page was computed from “21c757” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.