Nerdulator> put something in

Colour

#1B311E

  • #1B311E
  • Green
  • Dark
  • Nearest: Dark slate grey

#1B311E is a green with RGB values 27, 49, 30 and HSL 128°, 29%, 15%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B311E#1B311E
HEX#1B311E
RGBrgb(27, 49, 30)
RGB (0–1)0.1059, 0.1922, 0.1176
RGB percentages10.6%, 19.2%, 11.8%
HSLhsl(128.2, 28.9%, 14.9%)
HSV / HSBhsv(128.2, 44.9%, 19.2%)
CMYK44.9%, 0%, 38.8%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,782,046
CSS custom property--colour: #1B311E;

Brightness & contrast

Relative luminance0.02523WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.96:1
Contrast with white13.96:1WCAG normal text: AAA
Contrast with black1.5:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#E4CEE1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#322D1Dno red cones; affects about 1% of men; ΔE 13.1 from the original
Deuteranopia#2E2B1Fno green cones; the most common form, about 1% of men; ΔE 12.8 from the original
Tritanopia#18302Cno blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.96:1WCAG large text: AAA
Contrast with black, large text1.5:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.8Black · ΔE 24.6Dim grey · ΔE 31.2Dark olivegreen · ΔE 32.5Teal · ΔE 38.3Gray · ΔE 39.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.79, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#311B2E
Analogous#23311B, #1B3129
Triadic#1E1B31, #311E1B
Split complementary#291B31, #311B23
Tetradic#1B2331, #311B2E, #31291B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6BAD74
Lighter +30%#51945A
Lighter +20%#3F7346
Lighter +10%#2D5232
Darker −10%#09100A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#113B17
Less saturated −25%#252825

Channel breakdown

R27
G49
B30
Red27 (10.6%)
Green49 (19.2%)
Blue30 (11.8%)
Hue128.18°
Saturation (HSL)28.95%
Lightness14.9%
Dominant channelGreen
Hex per channelR 1B · G 31 · B 1E

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “1b311e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.