#645d3f

Color #645d3f

A muted dark yellow.

Closest named color Dim Gray #696969 · ΔE 19.08 Nearest Tailwind class olive-600 #5b5b4b · ΔE 6.1

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#645d3f

RGB

rgb(100, 93, 63)

HSL

hsl(48.6, 22.7%, 32%)

HSV / HSB

hsv(48.6, 37%, 39.2%)

CMYK

cmyk(0%, 7%, 37%, 60.8%)

LAB

lab(39.41, -2.25, 18.28)

LCH

lch(39.41, 18.42, 97.02)

OKLCH

oklch(47.7%, 0.0457, 96.53)

HWB

hwb(48.6, 24.7%, 60.8%)

Harmony colors

Complementary

#3f4664

Analogous

#644b3f

#645d3f

#59643f

Triadic

#645d3f

#3f645d

#5d3f64

Split-complementary

#645d3f

#3f5964

#4b3f64

Tetradic

#645d3f

#46643f

#3f4664

#5d3f64

Square

#645d3f

#3f644b

#3f4664

#643f59

Shades

Color #645d3f mixed toward black.

#534e35

#433e2a

#322f20

#211f15

#11100b

Tints

Color #645d3f mixed toward white.

#887e55

#a69c71

#bcb595

#d2cdb8

#e9e6dc

Tones

Color #645d3f mixed toward gray.

#615b42

#5e5945

#5b5748

#58554b

#55544f

Accessibility

Aa White text on this color

6.61:1

Aa Black text on this color

3.18:1

White text reads better on this background (6.61:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#616148 · ΔE 4

Deuteranopia

#61624a · ΔE 4.6

Tritanopia

#644e4f · ΔE 19.7

Achromatopsia

#5d5d5d · ΔE 13.1

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #645d3f;

Tailwind (arbitrary value)

bg-[#645d3f]

Related colors

Cornsilk #fff8dc

Gold #ffd700

Khaki #f0e68c

Lemon Chiffon #fffacd

Goldenrod #daa520

Dark Goldenrod #b8860b

Frequently asked questions

#645d3f (#645d3f) is rgb(100, 93, 63) in RGB.

No, #645d3f is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #645d3f, or check how it holds up for accessibility.

Generate a palette → Check contrast