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Recognised as Colour

#1FBB00

  • #1FBB00
  • Green
  • Dark
  • Nearest: Limegreen

#1FBB00 is a green with RGB values 31, 187, 0 and HSL 110°, 100%, 37%. It is a dark colour, so black text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Limegreen.

Colour values

#1FBB00#1FBB00
HEX#1FBB00
RGBrgb(31, 187, 0)
RGB (0–1)0.1216, 0.7333, 0
RGB percentages12.2%, 73.3%, 0%
HSLhsl(110.1, 100%, 36.7%)
HSV / HSBhsv(110.1, 100%, 73.3%)
CMYK83.4%, 0%, 100%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,079,488
CSS custom property--colour: #1FBB00;

Brightness & contrast

Relative luminance0.35832WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.17:1
Contrast with white2.57:1WCAG normal text: Fail
Contrast with black8.17:1WCAG normal text: AAA
Greyscale equivalent#8C8C8C
Inverted#E044FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C0A800no red cones; affects about 1% of men; ΔE 61.5 from the original
Deuteranopia#B09D28no green cones; the most common form, about 1% of men; ΔE 61.1 from the original
Tritanopia#00B59Eno blue cones; rare, and affects men and women equally; ΔE 69 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.57:1WCAG large text: Fail
Contrast with black, large text8.17:1WCAG large text: AAA

Named colours

Limegreen · ΔE 7.9Lawn green · ΔE 29.4Green · ΔE 29.7Yellow green · ΔE 30Chartreuse · ΔE 30.7Spring green · ΔE 31.1
Nearest named CSS colourLimegreen (#32CD32)ΔE 7.86, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9C00BB
Analogous#7CBB00, #00BB3F
Triadic#001FBB, #BB001F
Split complementary#3E00BB, #BB007D
Tetradic#007DBB, #9C00BB, #BB3F00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CFF88
Lighter +30%#71FF55
Lighter +20%#47FF22
Lighter +10%#27EE00
Darker −10%#178800
Darker −20%#0E5500
Darker −30%#062200
Darker −40%#000000
More saturated +25%#1FBB00
Less saturated −25%#2FA417

Channel breakdown

R31
G187
B0
Red31 (12.2%)
Green187 (73.3%)
Blue0 (0%)
Hue110.05°
Saturation (HSL)100%
Lightness36.67%
Dominant channelGreen
Hex per channelR 1F · G BB · B 00

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Every value on this page was computed from “1fbb00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.