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Colour

#21BE83

  • #21BE83
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#21BE83 is a cyan with RGB values 33, 190, 131 and HSL 157°, 70%, 44%. It is a dark colour, so black text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#21BE83#21BE83
HEX#21BE83
RGBrgb(33, 190, 131)
RGB (0–1)0.1294, 0.7451, 0.5137
RGB percentages12.9%, 74.5%, 51.4%
HSLhsl(157.5, 70.4%, 43.7%)
HSV / HSBhsv(157.5, 82.6%, 74.5%)
CMYK82.6%, 0%, 31.1%, 25.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,211,459
CSS custom property--colour: #21BE83;

Brightness & contrast

Relative luminance0.38789WCAG 2.x, 0 is black and 1 is white
Perceived brightness153.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.76:1
Contrast with white2.4:1WCAG normal text: Fail
Contrast with black8.76:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#DE417C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BBAF7Fno red cones; affects about 1% of men; ΔE 50 from the original
Deuteranopia#A9A287no green cones; the most common form, about 1% of men; ΔE 50.6 from the original
Tritanopia#00BDAEno blue cones; rare, and affects men and women equally; ΔE 24.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.4:1WCAG large text: Fail
Contrast with black, large text8.76:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 7.5Medium aquamarine · ΔE 19.1Sea green · ΔE 21.3Light green · ΔE 26.1Aquamarine · ΔE 26.2Turquoise · ΔE 27.6
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 7.5, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BE215C
Analogous#21BE34, #21ABBE
Triadic#8321BE, #BE8321
Split complementary#BE21AB, #BE3421
Tetradic#3421BE, #BE215C, #ABBE21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8F3DD
Lighter +30%#8DEBC8
Lighter +20%#61E4B3
Lighter +10%#36DC9E
Darker −10%#199365
Darker −20%#126747
Darker −30%#0A3C29
Darker −40%#03100B
More saturated +25%#05DA8A
Less saturated −25%#3DA27C

Channel breakdown

R33
G190
B131
Red33 (12.9%)
Green190 (74.5%)
Blue131 (51.4%)
Hue157.45°
Saturation (HSL)70.4%
Lightness43.73%
Dominant channelGreen
Hex per channelR 21 · G BE · B 83

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Every value on this page was computed from “21be83” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.