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Recognised as Colour

#403F2C

  • #403F2C
  • Yellow
  • Dark
  • Nearest: Dark slate grey

#403F2C is a yellow with RGB values 64, 63, 44 and HSL 57°, 19%, 21%. 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 slate grey.

Colour values

#403F2C#403F2C
HEX#403F2C
RGBrgb(64, 63, 44)
RGB (0–1)0.251, 0.2471, 0.1725
RGB percentages25.1%, 24.7%, 17.3%
HSLhsl(57, 18.5%, 21.2%)
HSV / HSBhsv(57, 31.3%, 25.1%)
CMYK0%, 1.6%, 31.2%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,210,476
CSS custom property--colour: #403F2C;

Brightness & contrast

Relative luminance0.04827WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.69:1
Contrast with white10.69:1WCAG normal text: AAA
Contrast with black1.97:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#BFC0D3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#423E2Bno red cones; affects about 1% of men; ΔE 1.5 from the original
Deuteranopia#433F2Dno green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#433D3Ano blue cones; rare, and affects men and women equally; ΔE 10.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.69:1WCAG large text: AAA
Contrast with black, large text1.97:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.4Dim grey · ΔE 21.9Black · ΔE 29Dark olivegreen · ΔE 29.2Gray · ΔE 30Slate grey · ΔE 34.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.42, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2C2D40
Analogous#40352C, #37402C
Triadic#2C403F, #3F2C40
Split complementary#2C3740, #352C40
Tetradic#2C4035, #2C2D40, #402C37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEAC8A
Lighter +30%#9A976B
Lighter +20%#7C7A56
Lighter +10%#5E5D41
Darker −10%#222117
Darker −20%#040302
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4E4B1E
Less saturated −25%#363636

Channel breakdown

R64
G63
B44
Red64 (25.1%)
Green63 (24.7%)
Blue44 (17.3%)
Hue57°
Saturation (HSL)18.52%
Lightness21.18%
Dominant channelRed
Hex per channelR 40 · G 3F · B 2C

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Every value on this page was computed from “403f2c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.