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Recognised as Colour

#3F3003

  • #3F3003
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#3F3003 is a yellow with RGB values 63, 48, 3 and HSL 45°, 91%, 13%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#3F3003#3F3003
HEX#3F3003
RGBrgb(63, 48, 3)
RGB (0–1)0.2471, 0.1882, 0.0118
RGB percentages24.7%, 18.8%, 1.2%
HSLhsl(45, 90.9%, 12.9%)
HSV / HSBhsv(45, 95.2%, 24.7%)
CMYK0%, 23.8%, 95.2%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,141,059
CSS custom property--colour: #3F3003;

Brightness & contrast

Relative luminance0.03177WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.84:1
Contrast with white12.84:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#C0CFFC

Colour vision & accessibility

Protanopia#373000no red cones; affects about 1% of men; ΔE 4.7 from the original
Deuteranopia#3B3405no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#452B28no blue cones; rare, and affects men and women equally; ΔE 23.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.84:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 29.89, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#03123F
Analogous#3F1203, #303F03
Triadic#033F30, #30033F
Split complementary#03303F, #12033F
Tetradic#033F12, #03123F, #3F0330

Tints, shades & saturation

Lighter +40%#F4BE1A
Lighter +30%#D19F0A
Lighter +20%#A07A08
Lighter +10%#705505
Darker −10%#0E0B01
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#423200
Less saturated −25%#372C0B

Channel breakdown

R63
G48
B3
Red63 (24.7%)
Green48 (18.8%)
Blue3 (1.2%)
Hue45°
Saturation (HSL)90.91%
Lightness12.94%
Dominant channelRed
Hex per channelR 3F · G 30 · B 03

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Every value on this page was computed from “3f3003” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.