#661F23#661F23

#661F23 is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.2% C 0.102 H 20.9°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#661F23
RGB	rgb(102, 31, 35)
HSL	hsl(357, 53%, 26%)
HSV	hsv(357, 70%, 40%)
CMYK	cmyk(0%, 69.6%, 65.7%, 60%)
CIE-LAB	lab(23.43, 32.12, 15.06)
CIE-LCH	lch(23.43, 35.47, 25.12°)
OKLab	oklab(35.23% 0.0952 0.0363)
OKLCH	oklch(35.23% 0.102 20.9)
XYZ	xyz(6.2735, 3.9270, 2.0174)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661F23 #1F6662

analogous

#661F46 #661F23 #663E1F

triadic

#661F23 #23661F #1F2366

tetradic

#661F23 #46661F #1F6662 #3E1F66

square

#661F23 #46661F #1F6662 #3E1F66

split-complementary

#661F23 #1F663E #1F4666

monochromatic

#170708 #371113 #661F23 #952D33 #C43C43

Accessibility & contrast

On white

11.76

#661F23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#661F23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661F23

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661F23	#FFFFFF	#000000	##FFFFFF
##661F23	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312E23

Deuteranopia (green-blind)

#433D21

Tritanopia (blue-blind)

#700F21

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #661f23;
/* rgb */ color: rgb(102, 31, 35);
/* oklch */ color: oklch(35.2% 0.102 20.9);

Tailwind

colors: {
  custom: {
    50: '#975f5d',
    500: '#661f23',
    950: '#000000',
  },
}

SCSS

$custom: #661f23;
$custom-light: #975f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#661f23",
  "rgb": {
    "r": 102,
    "g": 31,
    "b": 35
  },
  "hsl": {
    "h": 356.62,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35232,
    "c": 0.10187,
    "h": 20.9
  },
  "luminance": 0.03926
}

Semantic roles & 50–950 ramp

primary

#661F23

secondary

#469A96

accent

#DDD54B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0504

muted

#7E7979

Preview Lab

Preview with #661F23

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

Preview Lab → · Contrast checker → · Palette generator →