#661C25#661C25

#661C25 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.105 H 17.6°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#661C25
RGB	rgb(102, 28, 37)
HSL	hsl(353, 57%, 25%)
HSV	hsv(353, 73%, 40%)
CMYK	cmyk(0%, 72.5%, 63.7%, 60%)
CIE-LAB	lab(22.96, 33.64, 13.09)
CIE-LCH	lch(22.96, 36.10, 21.26°)
OKLab	oklab(34.9% 0.1005 0.032)
OKLCH	oklch(34.9% 0.105 17.6)
XYZ	xyz(6.2293, 3.7897, 2.1534)
Luminance	0.0379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C25 #1C665D

analogous

#661C4A #661C25 #66381C

triadic

#661C25 #25661C #1C2566

tetradic

#661C25 #4A661C #1C665D #381C66

square

#661C25 #4A661C #1C665D #381C66

split-complementary

#661C25 #1C6638 #1C4A66

monochromatic

#180709 #360F14 #661C25 #962936 #C63648

Accessibility & contrast

On white

11.95

#661C25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661C25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C25

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C25	#FFFFFF	#000000	##FFFFFF
##661C25	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2D25

Deuteranopia (green-blind)

#423C23

Tritanopia (blue-blind)

#700A20

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661c25;
/* rgb */ color: rgb(102, 28, 37);
/* oklch */ color: oklch(34.9% 0.105 17.6);

Tailwind

colors: {
  custom: {
    50: '#975e5f',
    500: '#661c25',
    950: '#000000',
  },
}

SCSS

$custom: #661c25;
$custom-light: #975e5f;
$custom-dark: #000000;

JSON

{
  "hex": "#661c25",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 37
  },
  "hsl": {
    "h": 352.703,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34898,
    "c": 0.10541,
    "h": 17.6
  },
  "luminance": 0.03789
}

Semantic roles & 50–950 ramp

primary

#661C25

secondary

#439B90

accent

#E0CE48

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0504

muted

#7E7979

Preview Lab

Preview with #661C25

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

Preview Lab → · Contrast checker → · Palette generator →