#403537

Accessibility

AAA

11.78:1

Vs white / black

11.78:1 · 1.78:1

Sources

Library color

Click any stop to open

Codes

Formats

HEX

#403537

RGB

rgb(64, 53, 55)

RGBA

rgba(64, 53, 55, 1)

HSL

hsl(349, 9%, 23%)

HSV

hsv(349, 17%, 25%)

LAB

lab(23.38% 5.29 0.57)

LCH

lch(23.38% 5.32 6.15)

OKLAB

oklab(0.3415 0.0159 0.0016)

OKLCH

oklch(0.3415 0.016 5.75)

XYZ

xyz(4.08, 3.91, 4.15)

CMYK

cmyk(0%, 17%, 14%, 75%)

CSS

color: #403537;

CSS variable

--color-403537: #403537;

SCSS

$color-403537: #403537;

Tailwind

rose-700

Export

Developer code

:root {
  --#403537-1: #403537;
}

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

efeeee dfddde cfcdcd bfbcbc afabac a09a9b 90898a 80787a 706869 605758 504648 403537 3b3132 352c2e 302829 2b2325 251f20 201b1c 1b1617 151212 100d0e 0b0909 050405

Palette

Tints

Mixed toward white — soft backgrounds and highlights

efeeee dfddde cfcdcd bfbcbc afabac a09a9b 90898a 80787a 706869 605758 504648

Palette

Shades

Mixed toward black — depth, text, and emphasis

3b3132 352c2e 302829 2b2325 251f20 201b1c 1b1617 151212 100d0e 0b0909 050405

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

453b3d 4b4243 504849 554e4f 5b5455 605b5c 656162 6b6768 706d6e 757474 7b7a7a

Harmony

Complementary

Opposite on the color wheel for contrast

#403537Stop 1 #35403EStop 2

Harmony

Analogous

Neighbors that sit comfortably together

#40353DStop 1 #403537Stop 2 #403935Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#403537Stop 1 #374035Stop 2 #353740Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#403537Stop 1 #354039Stop 2 #353D40Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#382E30Stop 1 #615154Stop 2 #8B7478Stop 3 #AE9EA1Stop 4 #D1C7C9Stop 5

Meaning

Color psychology

Energy, urgency, passion, and excitement. Often used for CTAs, alerts, and brands that want attention.

Common uses: primary buttons, chart series, status badges, marketing gradients, and brand accents in the Red family.

Similar & related colors

Nearby colors from the library by perceptual distance

Web Safe #333333#333333 Material Grey 800#424242 Bootstrap dark#212529 Material Grey 900#212121 Material You On Surface#1C1B1F Tailwind slate 700#334155 Tailwind slate 800#1E293B Fluent Gray#605E5C Material Grey 700#616161 Chakra gray 600#4A5568 DarkSlateGray#2F4F4F Tailwind slate 600#475569