#661C28#661C28

#661C28 is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.105 H 15.2°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#661C28
RGB	rgb(102, 28, 40)
HSL	hsl(350, 57%, 25%)
HSV	hsv(350, 73%, 40%)
CMYK	cmyk(0%, 72.5%, 60.8%, 60%)
CIE-LAB	lab(23.03, 33.88, 11.13)
CIE-LCH	lch(23.03, 35.66, 18.18°)
OKLab	oklab(34.97% 0.1018 0.0276)
OKLCH	oklch(34.97% 0.105 15.2)
XYZ	xyz(6.2783, 3.8093, 2.4117)
Luminance	0.0381 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C28 #1C665A

analogous

#661C4D #661C28 #66351C

triadic

#661C28 #28661C #1C2866

tetradic

#661C28 #4D661C #1C665A #351C66

square

#661C28 #4D661C #1C665A #351C66

split-complementary

#661C28 #1C6635 #1C4D66

monochromatic

#180709 #360F15 #661C28 #96293B #C6364E

Accessibility & contrast

On white

11.92

#661C28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661C28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C28

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C28	#FFFFFF	#000000	##FFFFFF
##661C28	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2D28

Deuteranopia (green-blind)

#423D26

Tritanopia (blue-blind)

#700C21

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661c28;
/* rgb */ color: rgb(102, 28, 40);
/* oklch */ color: oklch(35.0% 0.105 15.2);

Tailwind

colors: {
  custom: {
    50: '#975e61',
    500: '#661c28',
    950: '#000000',
  },
}

SCSS

$custom: #661c28;
$custom-light: #975e61;
$custom-dark: #000000;

JSON

{
  "hex": "#661c28",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 40
  },
  "hsl": {
    "h": 350.27,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.3497,
    "c": 0.10545,
    "h": 15.2
  },
  "luminance": 0.03808
}

Semantic roles & 50–950 ramp

primary

#661C28

secondary

#439B8D

accent

#E0C748

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #661C28

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

Preview Lab → · Contrast checker → · Palette generator →