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Colour

#40400F

  • #40400F
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#40400F is a yellow with RGB values 64, 64, 15 and HSL 60°, 62%, 15%. 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 olivegreen.

Colour values

#40400F#40400F
HEX#40400F
RGBrgb(64, 64, 15)
RGB (0–1)0.251, 0.251, 0.0588
RGB percentages25.1%, 25.1%, 5.9%
HSLhsl(60, 62%, 15.5%)
HSV / HSBhsv(60, 76.6%, 25.1%)
CMYK0%, 0%, 76.6%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,210,703
CSS custom property--colour: #40400F;

Brightness & contrast

Relative luminance0.04791WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.72:1
Contrast with white10.72:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#BFBFF0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#463D08no red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#463F12no green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#453B36no blue cones; rare, and affects men and women equally; ΔE 26.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.72:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 20Dark slate grey · ΔE 33Dim grey · ΔE 34.7Saddle brown · ΔE 37.6Olive · ΔE 38.5Black · ΔE 39.4
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 19.97, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0F0F40
Analogous#40280F, #28400F
Triadic#0F4040, #400F40
Split complementary#0F2840, #280F40
Tetradic#0F4028, #0F0F40, #400F28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D4D447
Lighter +30%#BCBC2C
Lighter +20%#939322
Lighter +10%#696919
Darker −10%#171705
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4A4A05
Less saturated −25%#363619

Channel breakdown

R64
G64
B15
Red64 (25.1%)
Green64 (25.1%)
Blue15 (5.9%)
Hue60°
Saturation (HSL)62.03%
Lightness15.49%
Dominant channelRed and Green
Hex per channelR 40 · G 40 · B 0F

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Every value on this page was computed from “40400f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.