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Recognised as Colour

#403F2A

  • #403F2A
  • Yellow
  • Dark
  • Nearest: Dark slate grey

#403F2A is a yellow with RGB values 64, 63, 42 and HSL 57°, 21%, 21%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#403F2A#403F2A
HEX#403F2A
RGBrgb(64, 63, 42)
RGB (0–1)0.251, 0.2471, 0.1647
RGB percentages25.1%, 24.7%, 16.5%
HSLhsl(57.3, 20.8%, 20.8%)
HSV / HSBhsv(57.3, 34.4%, 25.1%)
CMYK0%, 1.6%, 34.4%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,210,474
CSS custom property--colour: #403F2A;

Brightness & contrast

Relative luminance0.04812WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.7:1
Contrast with white10.7:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#BFC0D5

Colour vision & accessibility

Protanopia#433D29no red cones; affects about 1% of men; ΔE 2.6 from the original
Deuteranopia#433E2Bno green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#433C3Ano blue cones; rare, and affects men and women equally; ΔE 12.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.7:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.35, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2A2B40
Analogous#40342A, #36402A
Triadic#2A403F, #3F2A40
Split complementary#2A3640, #342A40
Tetradic#2A4034, #2A2B40, #402A36

Tints, shades & saturation

Lighter +40%#B0AE86
Lighter +30%#9C9967
Lighter +20%#7E7C52
Lighter +10%#5F5D3E
Darker −10%#212116
Darker −20%#020202
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4D4B1D
Less saturated −25%#353535

Channel breakdown

R64
G63
B42
Red64 (25.1%)
Green63 (24.7%)
Blue42 (16.5%)
Hue57.27°
Saturation (HSL)20.75%
Lightness20.78%
Dominant channelRed
Hex per channelR 40 · G 3F · B 2A

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Every value on this page was computed from “403f2a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.