#613F3F#613F3F

#613F3F is a dark, muted red. Relative luminance 0.065; OKLCH L 40.7% C 0.048 H 19.4°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#613F3F
RGB	rgb(97, 63, 63)
HSL	hsl(0, 21%, 31%)
HSV	hsv(0, 35%, 38%)
CMYK	cmyk(0%, 35.1%, 35.1%, 62%)
CIE-LAB	lab(30.53, 14.87, 6.09)
CIE-LCH	lch(30.53, 16.07, 22.27°)
OKLab	oklab(40.68% 0.0452 0.0159)
OKLCH	oklch(40.68% 0.048 19.4)
XYZ	xyz(7.6047, 6.4558, 5.5472)
Luminance	0.0645 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#613F3F #3F6161

analogous

#613F50 #613F3F #61503F

triadic

#613F3F #3F613F #3F3F61

tetradic

#613F3F #50613F #3F6161 #503F61

square

#613F3F #50613F #3F6161 #503F61

split-complementary

#613F3F #3F6150 #3F5061

monochromatic

#170F0F #3C2727 #613F3F #865757 #A57575

Accessibility & contrast

On white

9.17

#613F3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#613F3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #613F3F

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##613F3F	#FFFFFF	#000000	##FFFFFF
##613F3F	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45443F

Deuteranopia (green-blind)

#4E4A3E

Tritanopia (blue-blind)

#683B3F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #613f3f;
/* rgb */ color: rgb(97, 63, 63);
/* oklch */ color: oklch(40.7% 0.048 19.4);

Tailwind

colors: {
  custom: {
    50: '#8f7474',
    500: '#613f3f',
    950: '#000000',
  },
}

SCSS

$custom: #613f3f;
$custom-light: #8f7474;
$custom-dark: #000000;

JSON

{
  "hex": "#613f3f",
  "rgb": {
    "r": 97,
    "g": 63,
    "b": 63
  },
  "hsl": {
    "h": 0,
    "s": 21.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40683,
    "c": 0.0479,
    "h": 19.4
  },
  "luminance": 0.06455
}

Semantic roles & 50–950 ramp

primary

#613F3F

secondary

#6B9191

accent

#BEBE6A

background

#F8F7F7

surface

#F0EDED

border

#CBC8C8

text

#0C0808

muted

#7D7B7B

Preview Lab

Preview with #613F3F

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

Preview Lab → · Contrast checker → · Palette generator →