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Recognised as Colour

#646A04

  • #646A04
  • Yellow
  • Dark
  • Nearest: Olive

#646A04 is a yellow with RGB values 100, 106, 4 and HSL 64°, 93%, 22%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Olive.

Colour values

#646A04#646A04
HEX#646A04
RGBrgb(100, 106, 4)
RGB (0–1)0.3922, 0.4157, 0.0157
RGB percentages39.2%, 41.6%, 1.6%
HSLhsl(63.5, 92.7%, 21.6%)
HSV / HSBhsv(63.5, 96.2%, 41.6%)
CMYK5.7%, 0%, 96.2%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,580,740
CSS custom property--colour: #646A04;

Brightness & contrast

Relative luminance0.13026WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.82:1
Contrast with white5.82:1WCAG normal text: AA
Contrast with black3.61:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#9B95FB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#736400no red cones; affects about 1% of men; ΔE 10.7 from the original
Deuteranopia#736612no green cones; the most common form, about 1% of men; ΔE 10.3 from the original
Tritanopia#6C6359no blue cones; rare, and affects men and women equally; ΔE 43.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.82:1WCAG large text: AAA
Contrast with black, large text3.61:1WCAG large text: AA

Named colours

Olive · ΔE 12.7Dark olivegreen · ΔE 18Olivedrab · ΔE 18.5Dark green · ΔE 30.6Dark khaki · ΔE 32.2Dark goldenrod · ΔE 32.6
Nearest named CSS colourOlive (#808000)ΔE 12.65, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0A046A
Analogous#6A3D04, #316A04
Triadic#04646A, #6A0464
Split complementary#04316A, #3D046A
Tetradic#046A3D, #0A046A, #6A0431

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDF842
Lighter +30%#E9F611
Lighter +20%#C1CC08
Lighter +10%#929B06
Darker −10%#363902
Darker −20%#070800
Darker −30%#000000
Darker −40%#000000
More saturated +25%#686E00
Less saturated −25%#585C12

Channel breakdown

R100
G106
B4
Red100 (39.2%)
Green106 (41.6%)
Blue4 (1.6%)
Hue63.53°
Saturation (HSL)92.73%
Lightness21.57%
Dominant channelGreen
Hex per channelR 64 · G 6A · B 04

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Every value on this page was computed from “646a04” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.