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Colour

#3F370F

  • #3F370F
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#3F370F is a yellow with RGB values 63, 55, 15 and HSL 50°, 62%, 15%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#3F370F#3F370F
HEX#3F370F
RGBrgb(63, 55, 15)
RGB (0–1)0.2471, 0.2157, 0.0588
RGB percentages24.7%, 21.6%, 5.9%
HSLhsl(50, 61.5%, 15.3%)
HSV / HSBhsv(50, 76.2%, 24.7%)
CMYK0%, 12.7%, 76.2%, 75.3%naive device-independent conversion; real print needs an ICC profile
24-bit integer4,142,863
CSS custom property--colour: #3F370F;

Brightness & contrast

Relative luminance0.03824WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.9:1
Contrast with white11.9:1WCAG normal text: AAA
Contrast with black1.76:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#C0C8F0

Colour vision & accessibility

Protanopia#3D350Ano red cones; affects about 1% of men; ΔE 1.6 from the original
Deuteranopia#3F3811no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#44322Fno blue cones; rare, and affects men and women equally; ΔE 22.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.9:1WCAG large text: AAA
Contrast with black, large text1.76:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 25.98, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0F173F
Analogous#3F1F0F, #2F3F0F
Triadic#0F3F37, #370F3F
Split complementary#0F2F3F, #1F0F3F
Tetradic#0F3F1F, #0F173F, #3F0F2F

Tints, shades & saturation

Lighter +40%#D3BC47
Lighter +30%#BBA32C
Lighter +20%#917F23
Lighter +10%#685B19
Darker −10%#161305
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#493E05
Less saturated −25%#353119

Channel breakdown

R63
G55
B15
Red63 (24.7%)
Green55 (21.6%)
Blue15 (5.9%)
Hue50°
Saturation (HSL)61.54%
Lightness15.29%
Dominant channelRed
Hex per channelR 3F · G 37 · B 0F

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Every value on this page was computed from “3f370f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.