#661C2B#661C2B

#661C2B is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.106 H 12.6°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#661C2B
RGB	rgb(102, 28, 43)
HSL	hsl(348, 57%, 25%)
HSV	hsv(348, 73%, 40%)
CMYK	cmyk(0%, 72.5%, 57.8%, 60%)
CIE-LAB	lab(23.10, 34.14, 9.16)
CIE-LCH	lch(23.10, 35.35, 15.02°)
OKLab	oklab(35.05% 0.1031 0.023)
OKLCH	oklch(35.05% 0.106 12.6)
XYZ	xyz(6.3314, 3.8306, 2.6910)
Luminance	0.0383 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C2B #1C6657

analogous

#661C50 #661C2B #66321C

triadic

#661C2B #2B661C #1C2B66

tetradic

#661C2B #50661C #1C6657 #321C66

square

#661C2B #50661C #1C6657 #321C66

split-complementary

#661C2B #1C6632 #1C5066

monochromatic

#18070A #360F17 #661C2B #96293F #C63653

Accessibility & contrast

On white

11.89

#661C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#661C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C2B

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C2B	#FFFFFF	#000000	##FFFFFF
##661C2B	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2D2B

Deuteranopia (green-blind)

#413D29

Tritanopia (blue-blind)

#700D22

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661c2b;
/* rgb */ color: rgb(102, 28, 43);
/* oklch */ color: oklch(35.0% 0.106 12.6);

Tailwind

colors: {
  custom: {
    50: '#965e64',
    500: '#661c2b',
    950: '#000000',
  },
}

SCSS

$custom: #661c2b;
$custom-light: #965e64;
$custom-dark: #000000;

JSON

{
  "hex": "#661c2b",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 43
  },
  "hsl": {
    "h": 347.838,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35047,
    "c": 0.10564,
    "h": 12.6
  },
  "luminance": 0.0383
}

Semantic roles & 50–950 ramp

primary

#661C2B

secondary

#439B89

accent

#E0C148

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #661C2B

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

Preview Lab → · Contrast checker → · Palette generator →