Recognised as Colour

#645B15

#645B15
Yellow
Dark
Nearest: Dark olivegreen

#645B15 is a yellow with RGB values 100, 91, 21 and HSL 53°, 65%, 24%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#645B15#645B15

HEX#645B15

RGBrgb(100, 91, 21)

RGB (0–1)0.3922, 0.3569, 0.0824

RGB percentages39.2%, 35.7%, 8.2%

HSLhsl(53.2, 65.3%, 23.7%)

HSV / HSBhsv(53.2, 79%, 39.2%)

CMYK0%, 9%, 79%, 60.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,576,917

CSS custom property--colour: #645B15;

Brightness & contrast

Relative luminance0.10246WCAG 2.x, 0 is black and 1 is white

Perceived brightness88.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.89:1

Contrast with white6.89:1WCAG normal text: AA

Contrast with black3.05:1WCAG normal text: Fail

Greyscale equivalent#585858

Inverted#9BA4EA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645808no red cones; affects about 1% of men; ΔE 3.8 from the original

Deuteranopia#675C1Ano green cones; the most common form, about 1% of men; ΔE 1.9 from the original

Tritanopia#6C544Eno blue cones; rare, and affects men and women equally; ΔE 34.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.89:1WCAG large text: AAA

Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 16.7 Olive · ΔE 23.6 Olivedrab · ΔE 30.4 Saddle brown · ΔE 31.5 Sienna · ΔE 34.9 Dark goldenrod · ΔE 34.9

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 16.72, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#151E64

Analogous#643315, #456415

Triadic#15645B, #5B1564

Split complementary#154564, #331564

Tetradic#156434, #151E64, #641546

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#DFD166

Lighter +30%#D6C43C

Lighter +20%#B8A827

Lighter +10%#8E811E

Darker −10%#3A350C

Darker −20%#100E03

Darker −30%#000000

Darker −40%#000000

More saturated +25%#736706

Less saturated −25%#554F24

Channel breakdown

R100

G91

B21

Red100 (39.2%)

Green91 (35.7%)

Blue21 (8.2%)

Hue53.16°

Saturation (HSL)65.29%

Lightness23.73%

Dominant channelRed

Hex per channelR 64 · G 5B · B 15

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#645B15

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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