#661C2D#661C2D

#661C2D is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.1% C 0.106 H 10.9°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#661C2D
RGB	rgb(102, 28, 45)
HSL	hsl(346, 57%, 25%)
HSV	hsv(346, 73%, 40%)
CMYK	cmyk(0%, 72.5%, 55.9%, 60%)
CIE-LAB	lab(23.15, 34.32, 7.86)
CIE-LCH	lch(23.15, 35.21, 12.89°)
OKLab	oklab(35.1% 0.104 0.02)
OKLCH	oklch(35.1% 0.106 10.9)
XYZ	xyz(6.3690, 3.8456, 2.8890)
Luminance	0.0384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C2D #1C6655

analogous

#661C52 #661C2D #66301C

triadic

#661C2D #2D661C #1C2D66

tetradic

#661C2D #52661C #1C6655 #301C66

square

#661C2D #52661C #1C6655 #301C66

split-complementary

#661C2D #1C6630 #1C5266

monochromatic

#18070B #360F18 #661C2D #962942 #C63657

Accessibility & contrast

On white

11.87

#661C2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#661C2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C2D

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C2D	#FFFFFF	#000000	##FFFFFF
##661C2D	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2E2D

Deuteranopia (green-blind)

#413D2B

Tritanopia (blue-blind)

#700E23

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661c2d;
/* rgb */ color: rgb(102, 28, 45);
/* oklch */ color: oklch(35.1% 0.106 10.9);

Tailwind

colors: {
  custom: {
    50: '#965e65',
    500: '#661c2d',
    950: '#000000',
  },
}

SCSS

$custom: #661c2d;
$custom-light: #965e65;
$custom-dark: #000000;

JSON

{
  "hex": "#661c2d",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 45
  },
  "hsl": {
    "h": 346.216,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35102,
    "c": 0.10587,
    "h": 10.9
  },
  "luminance": 0.03845
}

Semantic roles & 50–950 ramp

primary

#661C2D

secondary

#439B87

accent

#E0BD48

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0505

muted

#7E797A

Preview Lab

Preview with #661C2D

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

Preview Lab → · Contrast checker → · Palette generator →