#673B36#673B36

#673B36 is a dark, moderate red. Relative luminance 0.063; OKLCH L 40.5% C 0.063 H 27.1°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#673B36
RGB	rgb(103, 59, 54)
HSL	hsl(6, 31%, 31%)
HSV	hsv(6, 48%, 40%)
CMYK	cmyk(0%, 42.7%, 47.6%, 59.6%)
CIE-LAB	lab(30.10, 18.78, 11.44)
CIE-LCH	lch(30.10, 21.99, 31.35°)
OKLab	oklab(40.46% 0.0563 0.0289)
OKLCH	oklch(40.46% 0.063 27.1)
XYZ	xyz(7.8238, 6.2785, 4.2891)
Luminance	0.0628 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673B36 #366267

analogous

#673649 #673B36 #675336

triadic

#673B36 #36673B #3B3667

tetradic

#673B36 #496736 #366267 #533667

square

#673B36 #496736 #366267 #533667

split-complementary

#673B36 #366753 #364967

monochromatic

#170D0C #3F2421 #673B36 #8F524B #B06F68

Accessibility & contrast

On white

9.31

#673B36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#673B36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673B36

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673B36	#FFFFFF	#000000	##FFFFFF
##673B36	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454135

Deuteranopia (green-blind)

#4F4A35

Tritanopia (blue-blind)

#6F353A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #673b36;
/* rgb */ color: rgb(103, 59, 54);
/* oklch */ color: oklch(40.5% 0.063 27.1);

Tailwind

colors: {
  custom: {
    50: '#95716d',
    500: '#673b36',
    950: '#000000',
  },
}

SCSS

$custom: #673b36;
$custom-light: #95716d;
$custom-dark: #000000;

JSON

{
  "hex": "#673b36",
  "rgb": {
    "r": 103,
    "g": 59,
    "b": 54
  },
  "hsl": {
    "h": 6.122,
    "s": 31.21,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40459,
    "c": 0.06331,
    "h": 27.1
  },
  "luminance": 0.06278
}

Semantic roles & 50–950 ramp

primary

#673B36

secondary

#619298

accent

#BDC760

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673B36

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

Preview Lab → · Contrast checker → · Palette generator →