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Recognised as Colour

#21975A

  • #21975A
  • Green
  • Dark
  • Nearest: Sea green

#21975A is a green with RGB values 33, 151, 90 and HSL 149°, 64%, 36%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#21975A#21975A
HEX#21975A
RGBrgb(33, 151, 90)
RGB (0–1)0.1294, 0.5922, 0.3529
RGB percentages12.9%, 59.2%, 35.3%
HSLhsl(149, 64.1%, 36.1%)
HSV / HSBhsv(149, 78.1%, 59.2%)
CMYK78.1%, 0%, 40.4%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,201,434
CSS custom property--colour: #21975A;

Brightness & contrast

Relative luminance0.23195WCAG 2.x, 0 is black and 1 is white
Perceived brightness121 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.64:1
Contrast with white3.72:1WCAG normal text: Fail
Contrast with black5.64:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#DE68A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#968A56no red cones; affects about 1% of men; ΔE 43.3 from the original
Deuteranopia#89805Eno green cones; the most common form, about 1% of men; ΔE 44.1 from the original
Tritanopia#009588no blue cones; rare, and affects men and women equally; ΔE 27.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.72:1WCAG large text: AA
Contrast with black, large text5.64:1WCAG large text: AAA

Named colours

Sea green · ΔE 8.1Medium seagreen · ΔE 10.3Forest green · ΔE 22.5Medium aquamarine · ΔE 26.5Dark green · ΔE 26.7Dark seagreen · ΔE 28.4
Nearest named CSS colourSea green (#2E8B57)ΔE 8.07, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#97215E
Analogous#239721, #219795
Triadic#5A2197, #975A21
Split complementary#952197, #972123
Tetradic#212397, #97215E, #979521

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9BE9C1
Lighter +30%#71E0A7
Lighter +20%#47D78D
Lighter +10%#2AC173
Darker −10%#186D41
Darker −20%#0F4328
Darker −30%#06190F
Darker −40%#000000
More saturated +25%#0AAE59
Less saturated −25%#38805B

Channel breakdown

R33
G151
B90
Red33 (12.9%)
Green151 (59.2%)
Blue90 (35.3%)
Hue148.98°
Saturation (HSL)64.13%
Lightness36.08%
Dominant channelGreen
Hex per channelR 21 · G 97 · B 5A

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Every value on this page was computed from “21975a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.