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Colour

#1B4009

  • #1B4009
  • Green
  • Dark
  • Nearest: Dark olivegreen

#1B4009 is a green with RGB values 27, 64, 9 and HSL 100°, 75%, 14%. It is a dark colour, so white text on it reaches 11.8:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#1B4009#1B4009
HEX#1B4009
RGBrgb(27, 64, 9)
RGB (0–1)0.1059, 0.251, 0.0353
RGB percentages10.6%, 25.1%, 3.5%
HSLhsl(100.4, 75.3%, 14.3%)
HSV / HSBhsv(100.4, 85.9%, 25.1%)
CMYK57.8%, 0%, 85.9%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,785,865
CSS custom property--colour: #1B4009;

Brightness & contrast

Relative luminance0.0392WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.77:1
Contrast with white11.77:1WCAG normal text: AAA
Contrast with black1.78:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#E4BFF6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#423A01no red cones; affects about 1% of men; ΔE 22 from the original
Deuteranopia#3E370Fno green cones; the most common form, about 1% of men; ΔE 22 from the original
Tritanopia#183D36no blue cones; rare, and affects men and women equally; ΔE 28.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.77:1WCAG large text: AAA
Contrast with black, large text1.78:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 19.9Dark green · ΔE 26.9Sea green · ΔE 32.9Dark slate grey · ΔE 34.7Olivedrab · ΔE 38.5Forest green · ΔE 40.9
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 19.89, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2E0940
Analogous#374009, #094012
Triadic#091B40, #40091B
Split complementary#120940, #400937
Tetradic#093740, #2E0940, #401209

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6CE233
Lighter +30%#54C61C
Lighter +20%#419916
Lighter +10%#2E6D0F
Darker −10%#081303
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#184900
Less saturated −25%#1E3712

Channel breakdown

R27
G64
B9
Red27 (10.6%)
Green64 (25.1%)
Blue9 (3.5%)
Hue100.36°
Saturation (HSL)75.34%
Lightness14.31%
Dominant channelGreen
Hex per channelR 1B · G 40 · B 09

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Every value on this page was computed from “1b4009” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.