#645b2a

Color #645b2a

A moderately saturated dark yellow.

Closest named color Dark Olive Green #556b2f · ΔE 15.86 Nearest Tailwind class olive-600 #5b5b4b · ΔE 10.9

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

Conversions

HEX

#645b2a

RGB

rgb(100, 91, 42)

HSL

hsl(50.7, 40.8%, 27.8%)

HSV / HSB

hsv(50.7, 58%, 39.2%)

CMYK

cmyk(0%, 9%, 58%, 60.8%)

LAB

lab(38.48, -3.48, 29.19)

LCH

lch(38.48, 29.4, 96.8)

OKLCH

oklch(46.9%, 0.0694, 99.04)

HWB

hwb(50.7, 16.5%, 60.8%)

Harmony colors

Complementary

#2a3364

Analogous

#643e2a

#645b2a

#50642a

Triadic

#645b2a

#2a645b

#5b2a64

Split-complementary

#645b2a

#2a5064

#3e2a64

Tetradic

#645b2a

#33642a

#2a3364

#5b2a64

Square

#645b2a

#2a643e

#2a3364

#642a50

Shades

Color #645b2a mixed toward black.

#534c23

#433d1c

#322d15

#211e0e

#110f07

Tints

Color #645b2a mixed toward white.

#8f823c

#b6a752

#c9bd7d

#dbd3a9

#ede9d4

Tones

Color #645b2a mixed toward gray.

#5f582f

#5a5434

#555138

#514e3d

#4c4a42

Accessibility

Aa White text on this color

6.84:1

Aa Black text on this color

3.07:1

White text reads better on this background (6.84:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#60603a · ΔE 5

Deuteranopia

#61613e · ΔE 5.7

Tritanopia

#644446 · ΔE 26.3

Achromatopsia

#5b5b5b · ΔE 17.8

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

Code

CSS

background-color: #645b2a;

Tailwind (arbitrary value)

bg-[#645b2a]

Related colors

Gold #ffd700

Cornsilk #fff8dc

Khaki #f0e68c

Lemon Chiffon #fffacd

Pale Goldenrod #eee8aa

Dark Khaki #bdb76b

Frequently asked questions

#645b2a (#645b2a) is rgb(100, 91, 42) in RGB.

No, #645b2a 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.

Try it →

Build something with this color

Generate a full palette from #645b2a, or check how it holds up for accessibility.

Generate a palette → Check contrast