#613F37#613F37

#613F37 is a dark, muted red. Relative luminance 0.064; OKLCH L 40.5% C 0.050 H 33.8°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#613F37
RGB	rgb(97, 63, 55)
HSL	hsl(11, 28%, 30%)
HSV	hsv(11, 43%, 38%)
CMYK	cmyk(0%, 35.1%, 43.3%, 62%)
CIE-LAB	lab(30.33, 13.76, 10.97)
CIE-LCH	lch(30.33, 17.60, 38.58°)
OKLab	oklab(40.46% 0.0415 0.0278)
OKLCH	oklch(40.46% 0.05 33.8)
XYZ	xyz(7.3972, 6.3728, 4.4542)
Luminance	0.0637 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#613F37 #375961

analogous

#613744 #613F37 #615437

triadic

#613F37 #37613F #3F3761

tetradic

#613F37 #446137 #375961 #543761

square

#613F37 #446137 #375961 #543761

split-complementary

#613F37 #376154 #374461

monochromatic

#140D0B #3A2621 #613F37 #88584D #AA7569

Accessibility & contrast

On white

9.23

#613F37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#613F37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #613F37

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##613F37	#FFFFFF	#000000	##FFFFFF
##613F37	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474336

Deuteranopia (green-blind)

#4F4A37

Tritanopia (blue-blind)

#683A3D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #613f37;
/* rgb */ color: rgb(97, 63, 55);
/* oklch */ color: oklch(40.5% 0.050 33.8);

Tailwind

colors: {
  custom: {
    50: '#8f746d',
    500: '#613f37',
    950: '#000000',
  },
}

SCSS

$custom: #613f37;
$custom-light: #8f746d;
$custom-dark: #000000;

JSON

{
  "hex": "#613f37",
  "rgb": {
    "r": 97,
    "g": 63,
    "b": 55
  },
  "hsl": {
    "h": 11.429,
    "s": 27.632,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40463,
    "c": 0.04997,
    "h": 33.8
  },
  "luminance": 0.06372
}

Semantic roles & 50–950 ramp

primary

#613F37

secondary

#628891

accent

#B2C464

background

#F8F7F6

surface

#F0EDEB

border

#CBC8C6

text

#0D0807

muted

#7D7B7A

Preview Lab

Preview with #613F37

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

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