#661E2B#661E2B

#661E2B is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.3% C 0.103 H 13.5°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#661E2B
RGB	rgb(102, 30, 43)
HSL	hsl(349, 55%, 26%)
HSV	hsv(349, 71%, 40%)
CMYK	cmyk(0%, 70.6%, 57.8%, 60%)
CIE-LAB	lab(23.43, 33.23, 9.62)
CIE-LCH	lch(23.43, 34.60, 16.14°)
OKLab	oklab(35.29% 0.1002 0.0241)
OKLCH	oklch(35.29% 0.103 13.5)
XYZ	xyz(6.3804, 3.9286, 2.7073)
Luminance	0.0393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661E2B #1E6659

analogous

#661E4F #661E2B #66351E

triadic

#661E2B #2B661E #1E2B66

tetradic

#661E2B #4F661E #1E6659 #351E66

square

#661E2B #4F661E #1E6659 #351E66

split-complementary

#661E2B #1E6635 #1E4F66

monochromatic

#18070A #371017 #661E2B #952C3F #C53A53

Accessibility & contrast

On white

11.76

#661E2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#661E2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661E2B

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661E2B	#FFFFFF	#000000	##FFFFFF
##661E2B	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)

#2F2E2B

Deuteranopia (green-blind)

#423D29

Tritanopia (blue-blind)

#701023

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #661e2b;
/* rgb */ color: rgb(102, 30, 43);
/* oklch */ color: oklch(35.3% 0.103 13.5);

Tailwind

colors: {
  custom: {
    50: '#965f64',
    500: '#661e2b',
    950: '#000000',
  },
}

SCSS

$custom: #661e2b;
$custom-light: #965f64;
$custom-dark: #000000;

JSON

{
  "hex": "#661e2b",
  "rgb": {
    "r": 102,
    "g": 30,
    "b": 43
  },
  "hsl": {
    "h": 349.167,
    "s": 54.545,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35293,
    "c": 0.10307,
    "h": 13.5
  },
  "luminance": 0.03928
}

Semantic roles & 50–950 ramp

primary

#661E2B

secondary

#459B8B

accent

#DEC34A

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #661E2B

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

Preview Lab → · Contrast checker → · Palette generator →