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Recognised as Colour

#403F05

  • #403F05
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#403F05 is a yellow with RGB values 64, 63, 5 and HSL 59°, 86%, 14%. 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

#403F05#403F05
HEX#403F05
RGBrgb(64, 63, 5)
RGB (0–1)0.251, 0.2471, 0.0196
RGB percentages25.1%, 24.7%, 2%
HSLhsl(59, 85.5%, 13.5%)
HSV / HSBhsv(59, 92.2%, 25.1%)
CMYK0%, 1.6%, 92.2%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,210,437
CSS custom property--colour: #403F05;

Brightness & contrast

Relative luminance0.04656WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.87:1
Contrast with white10.87:1WCAG normal text: AAA
Contrast with black1.93:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#BFC0FA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#453C00no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#463E0Ano green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#453A35no blue cones; rare, and affects men and women equally; ΔE 29.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.87:1WCAG large text: AAA
Contrast with black, large text1.93:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 20.3Olive · ΔE 36.1Saddle brown · ΔE 36.6Dark slate grey · ΔE 36.8Dim grey · ΔE 38.1Dark green · ΔE 38.9
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 20.31, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#050640
Analogous#402205, #234005
Triadic#05403F, #3F0540
Split complementary#052340, #220540
Tetradic#054022, #050640, #400523

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEEA23
Lighter +30%#CECB10
Lighter +20%#9F9C0C
Lighter +10%#6F6E09
Darker −10%#111001
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#454400
Less saturated −25%#37370E

Channel breakdown

R64
G63
B5
Red64 (25.1%)
Green63 (24.7%)
Blue5 (2%)
Hue58.98°
Saturation (HSL)85.51%
Lightness13.53%
Dominant channelRed
Hex per channelR 40 · G 3F · B 05

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Every value on this page was computed from “403f05” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.