#673D33#673D33

#673D33 is a dark, moderate red. Relative luminance 0.065; OKLCH L 40.8% C 0.062 H 34.2°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#673D33
RGB	rgb(103, 61, 51)
HSL	hsl(12, 34%, 30%)
HSV	hsv(12, 50%, 40%)
CMYK	cmyk(0%, 40.8%, 50.5%, 59.6%)
CIE-LAB	lab(30.55, 17.21, 13.96)
CIE-LCH	lch(30.55, 22.16, 39.06°)
OKLab	oklab(40.78% 0.0513 0.0348)
OKLCH	oklch(40.78% 0.062 34.2)
XYZ	xyz(7.8602, 6.4608, 3.9644)
Luminance	0.0646 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673D33 #335D67

analogous

#673343 #673D33 #675733

triadic

#673D33 #33673D #3D3367

tetradic

#673D33 #436733 #335D67 #573367

square

#673D33 #436733 #335D67 #573367

split-complementary

#673D33 #336757 #334367

monochromatic

#150D0A #3E251F #673D33 #905547 #B27263

Accessibility & contrast

On white

9.16

#673D33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#673D33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673D33

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673D33	#FFFFFF	#000000	##FFFFFF
##673D33	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474332

Deuteranopia (green-blind)

#514B32

Tritanopia (blue-blind)

#70373A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673d33;
/* rgb */ color: rgb(103, 61, 51);
/* oklch */ color: oklch(40.8% 0.062 34.2);

Tailwind

colors: {
  custom: {
    50: '#95736a',
    500: '#673d33',
    950: '#000000',
  },
}

SCSS

$custom: #673d33;
$custom-light: #95736a;
$custom-dark: #000000;

JSON

{
  "hex": "#673d33",
  "rgb": {
    "r": 103,
    "g": 61,
    "b": 51
  },
  "hsl": {
    "h": 11.538,
    "s": 33.766,
    "l": 30.196
  },
  "oklch": {
    "l": 0.40776,
    "c": 0.06194,
    "h": 34.2
  },
  "luminance": 0.0646
}

Semantic roles & 50–950 ramp

primary

#673D33

secondary

#5E8D98

accent

#B5CA5E

background

#F9F7F6

surface

#F2EDEB

border

#CCC8C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #673D33

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

Preview Lab → · Contrast checker → · Palette generator →