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Recognised as Colour

#183B01

  • #183B01
  • Green
  • Dark
  • Nearest: Dark olivegreen

#183B01 is a green with RGB values 24, 59, 1 and HSL 96°, 97%, 12%. It is a dark colour, so white text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#183B01#183B01
HEX#183B01
RGBrgb(24, 59, 1)
RGB (0–1)0.0941, 0.2314, 0.0039
RGB percentages9.4%, 23.1%, 0.4%
HSLhsl(96.2, 96.7%, 11.8%)
HSV / HSBhsv(96.2, 98.3%, 23.1%)
CMYK59.3%, 0%, 98.3%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,587,969
CSS custom property--colour: #183B01;

Brightness & contrast

Relative luminance0.03324WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.61:1
Contrast with white12.61:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#E7C4FE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D3500no red cones; affects about 1% of men; ΔE 21.4 from the original
Deuteranopia#393207no green cones; the most common form, about 1% of men; ΔE 21.6 from the original
Tritanopia#163831no blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.61:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 21.7Dark green · ΔE 27.8Sea green · ΔE 35.1Dark slate grey · ΔE 36Olivedrab · ΔE 39.7Forest green · ΔE 42.2
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 21.65, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#24013B
Analogous#353B01, #013B07
Triadic#01183B, #3B0118
Split complementary#07013B, #3B0135
Tetradic#01353B, #24013B, #3B0701

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6BFB0D
Lighter +30%#55D104
Lighter +20%#419F03
Lighter +10%#2C6D02
Darker −10%#040900
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#183C00
Less saturated −25%#1A3309

Channel breakdown

R24
G59
B1
Red24 (9.4%)
Green59 (23.1%)
Blue1 (0.4%)
Hue96.21°
Saturation (HSL)96.67%
Lightness11.76%
Dominant channelGreen
Hex per channelR 18 · G 3B · B 01

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Every value on this page was computed from “183b01” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.