#673C3C#673C3C

#673C3C is a dark, moderate red. Relative luminance 0.064; OKLCH L 40.8% C 0.061 H 20.0°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#673C3C
RGB	rgb(103, 60, 60)
HSL	hsl(0, 26%, 32%)
HSV	hsv(0, 42%, 40%)
CMYK	cmyk(0%, 41.7%, 41.7%, 59.6%)
CIE-LAB	lab(30.50, 18.92, 8.11)
CIE-LCH	lch(30.50, 20.58, 23.19°)
OKLab	oklab(40.81% 0.0572 0.0209)
OKLCH	oklch(40.81% 0.061 20)
XYZ	xyz(8.0254, 6.4422, 5.0949)
Luminance	0.0644 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#673C3C #3C6767

analogous

#673C52 #673C3C #67523C

triadic

#673C3C #3C673C #3C3C67

tetradic

#673C3C #52673C #3C6767 #523C67

square

#673C3C #52673C #3C6767 #523C67

split-complementary

#673C3C #3C6752 #3C5267

monochromatic

#1A0F0F #402525 #673C3C #8E5353 #AC7171

Accessibility & contrast

On white

9.18

#673C3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#673C3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #673C3C

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##673C3C	#FFFFFF	#000000	##FFFFFF
##673C3C	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45433C

Deuteranopia (green-blind)

#4F4B3B

Tritanopia (blue-blind)

#6F373C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #673c3c;
/* rgb */ color: rgb(103, 60, 60);
/* oklch */ color: oklch(40.8% 0.061 20.0);

Tailwind

colors: {
  custom: {
    50: '#947271',
    500: '#673c3c',
    950: '#000000',
  },
}

SCSS

$custom: #673c3c;
$custom-light: #947271;
$custom-dark: #000000;

JSON

{
  "hex": "#673c3c",
  "rgb": {
    "r": 103,
    "g": 60,
    "b": 60
  },
  "hsl": {
    "h": 0,
    "s": 26.38,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4081,
    "c": 0.06089,
    "h": 20
  },
  "luminance": 0.06442
}

Semantic roles & 50–950 ramp

primary

#673C3C

secondary

#689797

accent

#C3C365

background

#F9F6F6

surface

#F2ECEC

border

#CCC7C7

text

#0D0807

muted

#7E7B7A

Preview Lab

Preview with #673C3C

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

Preview Lab → · Contrast checker → · Palette generator →