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#423f21

a deep, soft yellow · cool · closest name: darkslategray

RGB
66, 63, 33
HSL
55°, 33%, 19%
CMYK
0, 5, 50, 74
Luminance
0.0482

Every format

HEX#423f21
RGBrgb(66, 63, 33)
HSLhsl(55, 33%, 19%)
CMYKcmyk(0%, 5%, 50%, 74%)
LABlab(26.2 -3.9 18.8)
LCHlch(26.2 19.2 101.6)
OKLCHoklch(0.363 0.047 103.4)

Copy-ready code

/* CSS */
color: #423f21;
background-color: #423f21;
/* Tailwind (arbitrary) */
class="text-[#423f21] bg-[#423f21]"
/* SCSS */
$brand: #423f21;
/* SwiftUI */
Color(red: 0.259, green: 0.247, blue: 0.129)
/* Android */
Color.parseColor("#423f21")

Accessibility — WCAG contrast

Aa
#423f21 on white: 10.69:1
AA ✓ pass · AA-large · AAA
Aa
#423f21 on black: 1.96:1
AA ✗ fail · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.9%
Green24.7%
Blue12.9%

CMYK percentages

Cyan0.0%
Magenta4.5%
Yellow50.0%
Key (black)74.1%

Color previews

#423f21 text on a black background

contrast 1.96:1

Card sample

#423f21 text on a white background

contrast 10.69:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #423f21;
Background color
Panel with #423f21 background
background-color: #423f21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #423f21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(66, 63, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 63, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #423f21;
background: linear-gradient(135deg, #423f21, #2F4221);

Monochromatic scale

Palettes built from #423f21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #423f21 in the Color Lab