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Recognised as Colour

#21642D

  • #21642D
  • Green
  • Dark
  • Nearest: Sea green

#21642D is a green with RGB values 33, 100, 45 and HSL 131°, 50%, 26%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Sea green.

Colour values

#21642D#21642D
HEX#21642D
RGBrgb(33, 100, 45)
RGB (0–1)0.1294, 0.3922, 0.1765
RGB percentages12.9%, 39.2%, 17.6%
HSLhsl(130.7, 50.4%, 26.1%)
HSV / HSBhsv(130.7, 67%, 39.2%)
CMYK67%, 0%, 55%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,188,333
CSS custom property--colour: #21642D;

Brightness & contrast

Relative luminance0.09627WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.18:1
Contrast with white7.18:1WCAG normal text: AAA
Contrast with black2.93:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#DE9BD2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#655B28no red cones; affects about 1% of men; ΔE 31.3 from the original
Deuteranopia#5D5531no green cones; the most common form, about 1% of men; ΔE 31.6 from the original
Tritanopia#0F6257no blue cones; rare, and affects men and women equally; ΔE 26.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.18:1WCAG large text: AAA
Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Sea green · ΔE 16.2Dark olivegreen · ΔE 16.9Dark green · ΔE 19.4Forest green · ΔE 28.8Olivedrab · ΔE 30.8Medium seagreen · ΔE 31.5
Nearest named CSS colourSea green (#2E8B57)ΔE 16.25, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#642158
Analogous#366421, #21644F
Triadic#2D2164, #642D21
Split complementary#4F2164, #642136
Tetradic#213664, #642158, #644F21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7DD48D
Lighter +30%#57C76B
Lighter +20%#3AB150
Lighter +10%#2E8A3E
Darker −10%#143E1C
Darker −20%#08170A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#107522
Less saturated −25%#325338

Channel breakdown

R33
G100
B45
Red33 (12.9%)
Green100 (39.2%)
Blue45 (17.6%)
Hue130.75°
Saturation (HSL)50.38%
Lightness26.08%
Dominant channelGreen
Hex per channelR 21 · G 64 · B 2D

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Every value on this page was computed from “21642d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.