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Recognised as Colour

#64663A

  • #64663A
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#64663A is a yellow with RGB values 100, 102, 58 and HSL 63°, 28%, 31%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#64663A#64663A
HEX#64663A
RGBrgb(100, 102, 58)
RGB (0–1)0.3922, 0.4, 0.2275
RGB percentages39.2%, 40%, 22.7%
HSLhsl(62.7, 27.5%, 31.4%)
HSV / HSBhsv(62.7, 43.1%, 40%)
CMYK2%, 0%, 43.1%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,579,770
CSS custom property--colour: #64663A;

Brightness & contrast

Relative luminance0.12518WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.99:1
Contrast with white5.99:1WCAG normal text: AA
Contrast with black3.5:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#9B99C5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C6237no red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#6D643Cno green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#69615Bno blue cones; rare, and affects men and women equally; ΔE 22.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.99:1WCAG large text: AAA
Contrast with black, large text3.5:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 12.3Dim grey · ΔE 26Gray · ΔE 28.4Dark slate grey · ΔE 30.5Sea green · ΔE 33.3Olive · ΔE 33.9
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 12.25, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C3A66
Analogous#66523A, #4E663A
Triadic#3A6466, #663A64
Split complementary#3A4E66, #523A66
Tetradic#3A6652, #3C3A66, #663A4E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C8CAA2
Lighter +30%#B5B881
Lighter +20%#A2A561
Lighter +10%#84874C
Darker −10%#444528
Darker −20%#242515
Darker −30%#040403
Darker −40%#000000
More saturated +25%#767A26
Less saturated −25%#52524E

Channel breakdown

R100
G102
B58
Red100 (39.2%)
Green102 (40%)
Blue58 (22.7%)
Hue62.73°
Saturation (HSL)27.5%
Lightness31.37%
Dominant channelGreen
Hex per channelR 64 · G 66 · B 3A

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Every value on this page was computed from “64663a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.