#673D40#673D40

#673D40 is a dark, muted red. Relative luminance 0.066; OKLCH L 41.1% C 0.059 H 15.4°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#673D40
RGB	rgb(103, 61, 64)
HSL	hsl(356, 26%, 32%)
HSV	hsv(356, 41%, 40%)
CMYK	cmyk(0%, 40.8%, 37.9%, 59.6%)
CIE-LAB	lab(30.86, 18.85, 6.02)
CIE-LCH	lch(30.86, 19.78, 17.70°)
OKLab	oklab(41.12% 0.0571 0.0157)
OKLCH	oklch(41.12% 0.059 15.4)
XYZ	xyz(8.1880, 6.5919, 5.6906)
Luminance	0.0659 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D40 #3D6764

analogous

#673D55 #673D40 #674F3D

triadic

#673D40 #40673D #3D4067

tetradic

#673D40 #55673D #3D6764 #4F3D67

square

#673D40 #55673D #3D6764 #4F3D67

split-complementary

#673D40 #3D674F #3D5567

monochromatic

#1A0F10 #412628 #673D40 #8D5458 #AC7377

Accessibility & contrast

On white

9.06

#673D40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#673D40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D40

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D40	#FFFFFF	#000000	##FFFFFF
##673D40	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454440

Deuteranopia (green-blind)

#4F4C3F

Tritanopia (blue-blind)

#6F393E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #673d40;
/* rgb */ color: rgb(103, 61, 64);
/* oklch */ color: oklch(41.1% 0.059 15.4);

Tailwind

colors: {
  custom: {
    50: '#947374',
    500: '#673d40',
    950: '#000000',
  },
}

SCSS

$custom: #673d40;
$custom-light: #947374;
$custom-dark: #000000;

JSON

{
  "hex": "#673d40",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 64
  },
  "hsl": {
    "h": 355.714,
    "s": 25.61,
    "l": 32.157
  },
  "oklch": {
    "l": 0.41118,
    "c": 0.05925,
    "h": 15.4
  },
  "luminance": 0.06591
}

Semantic roles & 50–950 ramp

primary

#673D40

secondary

#699793

accent

#C2BB66

background

#F9F7F7

surface

#F2EDED

border

#CCC8C8

text

#0D0808

muted

#7E7B7B

Preview Lab

Preview with #673D40

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →