#661018#661018

#661018 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.118 H 22.2°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#661018
RGB	rgb(102, 16, 24)
HSL	hsl(354, 73%, 23%)
HSV	hsv(354, 84%, 40%)
CMYK	cmyk(0%, 84.3%, 76.5%, 60%)
CIE-LAB	lab(21.06, 37.43, 19.56)
CIE-LCH	lch(21.06, 42.23, 27.59°)
OKLab	oklab(33.41% 0.1096 0.0447)
OKLCH	oklch(33.41% 0.118 22.2)
XYZ	xyz(5.8303, 3.2622, 1.1867)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661018 #10665E

analogous

#661043 #661018 #663310

triadic

#661018 #186610 #101866

tetradic

#661018 #436610 #10665E #331066

square

#661018 #436610 #10665E #331066

split-complementary

#661018 #106633 #104366

monochromatic

#1A0406 #31080C #661018 #9B1824 #D02131

Accessibility & contrast

On white

12.71

#661018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#661018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661018

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661018	#FFFFFF	#000000	##FFFFFF
##661018	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2717

Deuteranopia (green-blind)

#403915

Tritanopia (blue-blind)

#710014

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #661018;
/* rgb */ color: rgb(102, 16, 24);
/* oklch */ color: oklch(33.4% 0.118 22.2);

Tailwind

colors: {
  custom: {
    50: '#995854',
    500: '#661018',
    950: '#000000',
  },
}

SCSS

$custom: #661018;
$custom-light: #995854;
$custom-dark: #000000;

JSON

{
  "hex": "#661018",
  "rgb": {
    "r": 102,
    "g": 16,
    "b": 24
  },
  "hsl": {
    "h": 354.419,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33407,
    "c": 0.1183,
    "h": 22.2
  },
  "luminance": 0.03261
}

Semantic roles & 50–950 ramp

primary

#661018

secondary

#339E94

accent

#F0DF38

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661018

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

Preview Lab → · Contrast checker → · Palette generator →