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Recognised as Colour

#3F3F17

  • #3F3F17
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#3F3F17 is a yellow with RGB values 63, 63, 23 and HSL 60°, 47%, 17%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#3F3F17#3F3F17
HEX#3F3F17
RGBrgb(63, 63, 23)
RGB (0–1)0.2471, 0.2471, 0.0902
RGB percentages24.7%, 24.7%, 9%
HSLhsl(60, 46.5%, 16.9%)
HSV / HSBhsv(60, 63.5%, 24.7%)
CMYK0%, 0%, 63.5%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,144,919
CSS custom property--colour: #3F3F17;

Brightness & contrast

Relative luminance0.04674WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.85:1
Contrast with white10.85:1WCAG normal text: AAA
Contrast with black1.93:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#C0C0E8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#443C13no red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#453E19no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#443B36no blue cones; rare, and affects men and women equally; ΔE 21.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.85:1WCAG large text: AAA
Contrast with black, large text1.93:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 21.6Dark slate grey · ΔE 28.8Dim grey · ΔE 31.1Black · ΔE 35.9Gray · ΔE 37.3Saddle brown · ΔE 38.8
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 21.6, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#17173F
Analogous#3F2B17, #2B3F17
Triadic#173F3F, #3F173F
Split complementary#172B3F, #2B173F
Tetradic#173F2B, #17173F, #3F172B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4C45E
Lighter +30%#AFAF40
Lighter +20%#8A8A32
Lighter +10%#646425
Darker −10%#1A1A09
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4A4A0C
Less saturated −25%#343422

Channel breakdown

R63
G63
B23
Red63 (24.7%)
Green63 (24.7%)
Blue23 (9%)
Hue60°
Saturation (HSL)46.51%
Lightness16.86%
Dominant channelRed and Green
Hex per channelR 3F · G 3F · B 17

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Every value on this page was computed from “3f3f17” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.