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Recognised as Colour

#21510C

  • #21510C
  • Green
  • Dark
  • Nearest: Dark olivegreen

#21510C is a green with RGB values 33, 81, 12 and HSL 102°, 74%, 18%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#21510C#21510C
HEX#21510C
RGBrgb(33, 81, 12)
RGB (0–1)0.1294, 0.3176, 0.0471
RGB percentages12.9%, 31.8%, 4.7%
HSLhsl(101.7, 74.2%, 18.2%)
HSV / HSBhsv(101.7, 85.2%, 31.8%)
CMYK59.3%, 0%, 85.2%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,183,436
CSS custom property--colour: #21510C;

Brightness & contrast

Relative luminance0.06235WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.35:1
Contrast with white9.35:1WCAG normal text: AAA
Contrast with black2.25:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#DEAEF3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#544900no red cones; affects about 1% of men; ΔE 27.6 from the original
Deuteranopia#4E4514no green cones; the most common form, about 1% of men; ΔE 27.2 from the original
Tritanopia#1D4E44no blue cones; rare, and affects men and women equally; ΔE 33.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.35:1WCAG large text: AAA
Contrast with black, large text2.25:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 16.6Dark green · ΔE 17.4Sea green · ΔE 27Olivedrab · ΔE 29.9Forest green · ΔE 31Green · ΔE 32.1
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 16.59, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C0C51
Analogous#43510C, #0C511A
Triadic#0C2151, #510C21
Split complementary#1A0C51, #510C43
Tetradic#0C4351, #3C0C51, #511A0C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#76E445
Lighter +30%#57D620
Lighter +20%#45AA19
Lighter +10%#337D13
Darker −10%#0F2505
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1C5D00
Less saturated −25%#264518

Channel breakdown

R33
G81
B12
Red33 (12.9%)
Green81 (31.8%)
Blue12 (4.7%)
Hue101.74°
Saturation (HSL)74.19%
Lightness18.24%
Dominant channelGreen
Hex per channelR 21 · G 51 · B 0C

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Every value on this page was computed from “21510c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.