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Recognised as Colour

#21310F

  • #21310F
  • Green
  • Dark
  • Nearest: Dark slate grey

#21310F is a green with RGB values 33, 49, 15 and HSL 88°, 53%, 13%. It is a dark colour, so white text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#21310F#21310F
HEX#21310F
RGBrgb(33, 49, 15)
RGB (0–1)0.1294, 0.1922, 0.0588
RGB percentages12.9%, 19.2%, 5.9%
HSLhsl(88.2, 53.1%, 12.5%)
HSV / HSBhsv(88.2, 69.4%, 19.2%)
CMYK32.7%, 0%, 69.4%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,175,247
CSS custom property--colour: #21310F;

Brightness & contrast

Relative luminance0.02554WCAG 2.x, 0 is black and 1 is white
Perceived brightness42 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.9:1
Contrast with white13.9:1WCAG normal text: AAA
Contrast with black1.51:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#DECEF0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#332D0Bno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#312C11no green cones; the most common form, about 1% of men; ΔE 11.6 from the original
Tritanopia#222F2Ano blue cones; rare, and affects men and women equally; ΔE 19 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.9:1WCAG large text: AAA
Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 26.4Dark olivegreen · ΔE 27.1Black · ΔE 29.7Dim grey · ΔE 35.3Dark green · ΔE 41.5Sea green · ΔE 42.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 26.44, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F0F31
Analogous#31300F, #10310F
Triadic#0F2131, #310F21
Split complementary#0F1031, #300F31
Tetradic#0F3130, #1F0F31, #310F10

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8AC646
Lighter +30%#70A633
Lighter +20%#567F27
Lighter +10%#3B581B
Darker −10%#070A03
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#213907
Less saturated −25%#212917

Channel breakdown

R33
G49
B15
Red33 (12.9%)
Green49 (19.2%)
Blue15 (5.9%)
Hue88.24°
Saturation (HSL)53.13%
Lightness12.55%
Dominant channelGreen
Hex per channelR 21 · G 31 · B 0F

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Every value on this page was computed from “21310f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.