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Colour

#645C3C

  • #645C3C
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#645C3C is a yellow with RGB values 100, 92, 60 and HSL 48°, 25%, 31%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#645C3C#645C3C
HEX#645C3C
RGBrgb(100, 92, 60)
RGB (0–1)0.3922, 0.3608, 0.2353
RGB percentages39.2%, 36.1%, 23.5%
HSLhsl(48, 25%, 31.4%)
HSV / HSBhsv(48, 40%, 39.2%)
CMYK0%, 8%, 40%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,577,212
CSS custom property--colour: #645C3C;

Brightness & contrast

Relative luminance0.1069WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.69:1
Contrast with white6.69:1WCAG normal text: AA
Contrast with black3.14:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#9BA3C3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#625A3Ano red cones; affects about 1% of men; ΔE 0.8 from the original
Deuteranopia#645D3Dno green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#6A5754no blue cones; rare, and affects men and women equally; ΔE 17.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.69:1WCAG large text: AAA
Contrast with black, large text3.14:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 20.3Dim grey · ΔE 20.4Gray · ΔE 24.5Dark slate grey · ΔE 26.4Slate grey · ΔE 33.2Rosy brown · ΔE 33.7
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#3C4464
Analogous#64483C, #58643C
Triadic#3C645C, #5C3C64
Split complementary#3C5864, #483C64
Tetradic#3C6448, #3C4464, #643C58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C8C1A4
Lighter +30%#B5AB84
Lighter +20%#A29664
Lighter +10%#84794F
Darker −10%#443F29
Darker −20%#242116
Darker −30%#040403
Darker −40%#000000
More saturated +25%#786828
Less saturated −25%#505050

Channel breakdown

R100
G92
B60
Red100 (39.2%)
Green92 (36.1%)
Blue60 (23.5%)
Hue48°
Saturation (HSL)25%
Lightness31.37%
Dominant channelRed
Hex per channelR 64 · G 5C · B 3C

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Every value on this page was computed from “645c3c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.