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Recognised as Colour

#64540B

  • #64540B
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#64540B is a yellow with RGB values 100, 84, 11 and HSL 49°, 80%, 22%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#64540B#64540B
HEX#64540B
RGBrgb(100, 84, 11)
RGB (0–1)0.3922, 0.3294, 0.0431
RGB percentages39.2%, 32.9%, 4.3%
HSLhsl(49.2, 80.2%, 21.8%)
HSV / HSBhsv(49.2, 89%, 39.2%)
CMYK0%, 16%, 89%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,575,115
CSS custom property--colour: #64540B;

Brightness & contrast

Relative luminance0.09074WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.46:1
Contrast with white7.46:1WCAG normal text: AAA
Contrast with black2.81:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#9BABF4

Colour vision & accessibility

Protanopia#5E5200no red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#625711no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#6D4C47no blue cones; rare, and affects men and women equally; ΔE 35.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.46:1WCAG large text: AAA
Contrast with black, large text2.81:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 21.2, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0B1B64
Analogous#64270B, #48640B
Triadic#0B6454, #540B64
Split complementary#0B4864, #270B64
Tetradic#0B6428, #0B1B64, #640B48

Tints, shades & saturation

Lighter +40%#ECD04F
Lighter +30%#E7C321
Lighter +20%#C0A115
Lighter +10%#927B10
Darker −10%#362D06
Darker −20%#080701
Darker −30%#000000
Darker −40%#000000
More saturated +25%#6F5B00
Less saturated −25%#564B19

Channel breakdown

R100
G84
B11
Red100 (39.2%)
Green84 (32.9%)
Blue11 (4.3%)
Hue49.21°
Saturation (HSL)80.18%
Lightness21.76%
Dominant channelRed
Hex per channelR 64 · G 54 · B 0B

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Every value on this page was computed from “64540b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.