#661E23#661E23

#661E23 is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.1% C 0.103 H 20.3°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#661E23
RGB	rgb(102, 30, 35)
HSL	hsl(356, 55%, 26%)
HSV	hsv(356, 71%, 40%)
CMYK	cmyk(0%, 70.6%, 65.7%, 60%)
CIE-LAB	lab(23.26, 32.58, 14.83)
CIE-LCH	lch(23.26, 35.80, 24.48°)
OKLab	oklab(35.1% 0.0967 0.0358)
OKLCH	oklch(35.1% 0.103 20.3)
XYZ	xyz(6.2477, 3.8755, 2.0088)
Luminance	0.0387 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661E23 #1E6661

analogous

#661E47 #661E23 #663D1E

triadic

#661E23 #23661E #1E2366

tetradic

#661E23 #47661E #1E6661 #3D1E66

square

#661E23 #47661E #1E6661 #3D1E66

split-complementary

#661E23 #1E663D #1E4766

monochromatic

#180708 #371013 #661E23 #952C33 #C53A43

Accessibility & contrast

On white

11.83

#661E23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#661E23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661E23

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661E23	#FFFFFF	#000000	##FFFFFF
##661E23	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312E23

Deuteranopia (green-blind)

#433D21

Tritanopia (blue-blind)

#700D20

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661e23;
/* rgb */ color: rgb(102, 30, 35);
/* oklch */ color: oklch(35.1% 0.103 20.3);

Tailwind

colors: {
  custom: {
    50: '#975f5d',
    500: '#661e23',
    950: '#000000',
  },
}

SCSS

$custom: #661e23;
$custom-light: #975f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#661e23",
  "rgb": {
    "r": 102,
    "g": 30,
    "b": 35
  },
  "hsl": {
    "h": 355.833,
    "s": 54.545,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35102,
    "c": 0.10308,
    "h": 20.3
  },
  "luminance": 0.03875
}

Semantic roles & 50–950 ramp

primary

#661E23

secondary

#459B95

accent

#DED44A

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0504

muted

#7E7979

Preview Lab

Preview with #661E23

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

Preview Lab → · Contrast checker → · Palette generator →