#673B2F#673B2F

#673B2F is a dark, moderate red. Relative luminance 0.062; OKLCH L 40.3% C 0.066 H 36.1°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#673B2F
RGB	rgb(103, 59, 47)
HSL	hsl(13, 37%, 29%)
HSV	hsv(13, 54%, 40%)
CMYK	cmyk(0%, 42.7%, 54.4%, 59.6%)
CIE-LAB	lab(29.95, 18.00, 15.73)
CIE-LCH	lch(29.95, 23.90, 41.16°)
OKLab	oklab(40.29% 0.0532 0.0387)
OKLCH	oklch(40.29% 0.066 36.1)
XYZ	xyz(7.6711, 6.2174, 3.4849)
Luminance	0.0622 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673B2F #2F5B67

analogous

#672F3F #673B2F #67572F

triadic

#673B2F #2F673B #3B2F67

tetradic

#673B2F #3F672F #2F5B67 #572F67

square

#673B2F #3F672F #2F5B67 #572F67

split-complementary

#673B2F #2F6757 #2F3F67

monochromatic

#150C0A #3D231C #673B2F #915342 #B56F5C

Accessibility & contrast

On white

9.36

#673B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#673B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673B2F

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673B2F	#FFFFFF	#000000	##FFFFFF
##673B2F	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46412E

Deuteranopia (green-blind)

#504A2E

Tritanopia (blue-blind)

#703438

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #673b2f;
/* rgb */ color: rgb(103, 59, 47);
/* oklch */ color: oklch(40.3% 0.066 36.1);

Tailwind

colors: {
  custom: {
    50: '#957167',
    500: '#673b2f',
    950: '#000000',
  },
}

SCSS

$custom: #673b2f;
$custom-light: #957167;
$custom-dark: #000000;

JSON

{
  "hex": "#673b2f",
  "rgb": {
    "r": 103,
    "g": 59,
    "b": 47
  },
  "hsl": {
    "h": 12.857,
    "s": 37.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40294,
    "c": 0.06577,
    "h": 36.1
  },
  "luminance": 0.06217
}

Semantic roles & 50–950 ramp

primary

#673B2F

secondary

#598B98

accent

#B5CD5A

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0E0706

muted

#7E7A7A

Preview Lab

Preview with #673B2F

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

Preview Lab → · Contrast checker → · Palette generator →