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Recognised as Colour

#1B4734

  • #1B4734
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1B4734 is a cyan with RGB values 27, 71, 52 and HSL 154°, 45%, 19%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1B4734#1B4734
HEX#1B4734
RGBrgb(27, 71, 52)
RGB (0–1)0.1059, 0.2784, 0.2039
RGB percentages10.6%, 27.8%, 20.4%
HSLhsl(154.1, 44.9%, 19.2%)
HSV / HSBhsv(154.1, 62%, 27.8%)
CMYK62%, 0%, 26.8%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,787,700
CSS custom property--colour: #1B4734;

Brightness & contrast

Relative luminance0.04987WCAG 2.x, 0 is black and 1 is white
Perceived brightness59 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.51:1
Contrast with white10.51:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#E4B8CB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#464233no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#3F3D35no green cones; the most common form, about 1% of men; ΔE 19.8 from the original
Tritanopia#094742no blue cones; rare, and affects men and women equally; ΔE 9.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.51:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 14.6Teal · ΔE 27.8Dim grey · ΔE 28Dark olivegreen · ΔE 28.4Dark cyan · ΔE 31.7Sea green · ΔE 34
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 14.55, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#471B2E
Analogous#1B471E, #1B4447
Triadic#341B47, #47341B
Split complementary#471B44, #471E1B
Tetradic#1E1B47, #471B2E, #44471B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#68C69D
Lighter +30%#45B685
Lighter +20%#37916A
Lighter +10%#296C4F
Darker −10%#0D2219
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0F5336
Less saturated −25%#273B32

Channel breakdown

R27
G71
B52
Red27 (10.6%)
Green71 (27.8%)
Blue52 (20.4%)
Hue154.09°
Saturation (HSL)44.9%
Lightness19.22%
Dominant channelGreen
Hex per channelR 1B · G 47 · B 34

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Every value on this page was computed from “1b4734” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.