Recognised as Colour

#21B26C

#21B26C
Cyan
Dark
Nearest: Medium seagreen

#21B26C is a cyan with RGB values 33, 178, 108 and HSL 151°, 69%, 41%. It is a dark colour, so black text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#21B26C#21B26C

HEX#21B26C

RGBrgb(33, 178, 108)

RGB (0–1)0.1294, 0.698, 0.4235

RGB percentages12.9%, 69.8%, 42.4%

HSLhsl(151, 68.7%, 41.4%)

HSV / HSBhsv(151, 81.5%, 69.8%)

CMYK81.5%, 0%, 39.3%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,208,364

CSS custom property--colour: #21B26C;

Brightness & contrast

Relative luminance0.33247WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.65:1

Contrast with white2.75:1WCAG normal text: Fail

Contrast with black7.65:1WCAG normal text: AAA

Greyscale equivalent#8E8E8E

Inverted#DE4D93

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#B1A367no red cones; affects about 1% of men; ΔE 49.8 from the original

Deuteranopia#A19771no green cones; the most common form, about 1% of men; ΔE 50.5 from the original

Tritanopia#00B0A0no blue cones; rare, and affects men and women equally; ΔE 30.4 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.75:1WCAG large text: Fail

Contrast with black, large text7.65:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 4.8 Sea green · ΔE 19.1 Forest green · ΔE 24 Medium aquamarine · ΔE 25.2 Light green · ΔE 25.7 Pale green · ΔE 29.7

Nearest named CSS colourMedium seagreen (#3CB371)ΔE 4.8, a close match

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#B22167

Analogous#21B223, #21B0B2

Triadic#6C21B2, #B26C21

Split complementary#B221AF, #B22421

Tetradic#2421B2, #B22167, #AFB221

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#AFF0D1

Lighter +30%#84E8B8

Lighter +20%#59E09F

Lighter +10%#2ED886

Darker −10%#198752

Darker −20%#115C38

Darker −30%#09311E

Darker −40%#010604

More saturated +25%#07CC6D

Less saturated −25%#3B986B

Channel breakdown

R33

G178

B108

Red33 (12.9%)

Green178 (69.8%)

Blue108 (42.4%)

Hue151.03°

Saturation (HSL)68.72%

Lightness41.37%

Dominant channelGreen

Hex per channelR 21 · G B2 · B 6C

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#21B26C

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else