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Recognised as Colour

#21DE96

  • #21DE96
  • Cyan
  • Light
  • Nearest: Medium spring green

#21DE96 is a cyan with RGB values 33, 222, 150 and HSL 157°, 74%, 50%. It is a light colour, so black text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Medium spring green.

Colour values

#21DE96#21DE96
HEX#21DE96
RGBrgb(33, 222, 150)
RGB (0–1)0.1294, 0.8706, 0.5882
RGB percentages12.9%, 87.1%, 58.8%
HSLhsl(157.1, 74.1%, 50%)
HSV / HSBhsv(157.1, 85.1%, 87.1%)
CMYK85.1%, 0%, 32.4%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,219,670
CSS custom property--colour: #21DE96;

Brightness & contrast

Relative luminance0.54768WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.95:1
Contrast with white1.76:1WCAG normal text: Fail
Contrast with black11.95:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#DE2169

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#DBCC92no red cones; affects about 1% of men; ΔE 57.6 from the original
Deuteranopia#C6BD9Bno green cones; the most common form, about 1% of men; ΔE 58.2 from the original
Tritanopia#00DDCBno blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.76:1WCAG large text: Fail
Contrast with black, large text11.95:1WCAG large text: AAA

Named colours

Medium spring green · ΔE 16.3Medium seagreen · ΔE 18.3Light green · ΔE 21.1Pale green · ΔE 22.8Aquamarine · ΔE 23.9Medium aquamarine · ΔE 26.7
Nearest named CSS colourMedium spring green (#00FA9A)ΔE 16.27, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DE2169
Analogous#21DE37, #21C8DE
Triadic#9621DE, #DE9621
Split complementary#DE21C8, #DE3721
Tetradic#3721DE, #DE2169, #C8DE21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3F8EA
Lighter +30%#A6F2D5
Lighter +20%#7AEBC0
Lighter +10%#4DE5AB
Darker −10%#1AB278
Darker −20%#14855A
Darker −30%#0D593C
Darker −40%#072C1E
More saturated +25%#01FE9E
Less saturated −25%#41BE8E

Channel breakdown

R33
G222
B150
Red33 (12.9%)
Green222 (87.1%)
Blue150 (58.8%)
Hue157.14°
Saturation (HSL)74.12%
Lightness50%
Dominant channelGreen
Hex per channelR 21 · G DE · B 96

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Every value on this page was computed from “21de96” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.