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Recognised as Colour

#3F400A

  • #3F400A
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#3F400A is a yellow with RGB values 63, 64, 10 and HSL 61°, 73%, 15%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#3F400A#3F400A
HEX#3F400A
RGBrgb(63, 64, 10)
RGB (0–1)0.2471, 0.251, 0.0392
RGB percentages24.7%, 25.1%, 3.9%
HSLhsl(61.1, 73%, 14.5%)
HSV / HSBhsv(61.1, 84.4%, 25.1%)
CMYK1.6%, 0%, 84.4%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,145,162
CSS custom property--colour: #3F400A;

Brightness & contrast

Relative luminance0.04745WCAG 2.x, 0 is black and 1 is white
Perceived brightness60 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.77:1
Contrast with white10.77:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#C0BFF5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#463D02no red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#463E0Eno green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#443B36no blue cones; rare, and affects men and women equally; ΔE 28.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.77:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 19.5Dark slate grey · ΔE 34.9Dim grey · ΔE 36.6Olive · ΔE 37.1Saddle brown · ΔE 37.8Dark green · ΔE 38.5
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 19.51, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0B0A40
Analogous#40260A, #24400A
Triadic#0A3F40, #400A3F
Split complementary#0A2440, #260A40
Tetradic#0A4026, #0B0A40, #400A24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDE036
Lighter +30%#C1C41F
Lighter +20%#969818
Lighter +10%#6A6C11
Darker −10%#141403
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#484901
Less saturated −25%#363713

Channel breakdown

R63
G64
B10
Red63 (24.7%)
Green64 (25.1%)
Blue10 (3.9%)
Hue61.11°
Saturation (HSL)72.97%
Lightness14.51%
Dominant channelGreen
Hex per channelR 3F · G 40 · B 0A

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Every value on this page was computed from “3f400a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.