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Recognised as Colour

#645C0E

  • #645C0E
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#645C0E is a yellow with RGB values 100, 92, 14 and HSL 54°, 75%, 22%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#645C0E#645C0E
HEX#645C0E
RGBrgb(100, 92, 14)
RGB (0–1)0.3922, 0.3608, 0.0549
RGB percentages39.2%, 36.1%, 5.5%
HSLhsl(54.4, 75.4%, 22.4%)
HSV / HSBhsv(54.4, 86%, 39.2%)
CMYK0%, 8%, 86%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,577,166
CSS custom property--colour: #645C0E;

Brightness & contrast

Relative luminance0.10395WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.82:1
Contrast with white6.82:1WCAG normal text: AA
Contrast with black3.08:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#9BA3F1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#655900no red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#685C15no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#6C554Eno blue cones; rare, and affects men and women equally; ΔE 36.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.82:1WCAG large text: AAA
Contrast with black, large text3.08:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 17.5Olive · ΔE 21.2Olivedrab · ΔE 28.7Saddle brown · ΔE 32.3Dark goldenrod · ΔE 33.3Dark khaki · ΔE 35.1
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 17.55, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0E1664
Analogous#64310E, #41640E
Triadic#0E645C, #5C0E64
Split complementary#0E4164, #310E64
Tetradic#0E6431, #0E1664, #640E41

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7DA57
Lighter +30%#E1D02A
Lighter +20%#BDAE1B
Lighter +10%#918514
Darker −10%#373308
Darker −20%#0B0A01
Darker −30%#000000
Darker −40%#000000
More saturated +25%#726700
Less saturated −25%#56501C

Channel breakdown

R100
G92
B14
Red100 (39.2%)
Green92 (36.1%)
Blue14 (5.5%)
Hue54.42°
Saturation (HSL)75.44%
Lightness22.35%
Dominant channelRed
Hex per channelR 64 · G 5C · B 0E

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Every value on this page was computed from “645c0e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.