#613F40#613F40

#613F40 is a dark, muted red. Relative luminance 0.065; OKLCH L 40.7% C 0.048 H 17.4°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#613F40
RGB	rgb(97, 63, 64)
HSL	hsl(358, 21%, 31%)
HSV	hsv(358, 35%, 38%)
CMYK	cmyk(0%, 35.1%, 34%, 62%)
CIE-LAB	lab(30.56, 15.02, 5.48)
CIE-LCH	lch(30.56, 15.99, 20.04°)
OKLab	oklab(40.71% 0.0456 0.0143)
OKLCH	oklch(40.71% 0.048 17.4)
XYZ	xyz(7.6329, 6.4671, 5.6957)
Luminance	0.0647 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#613F40 #3F6160

analogous

#613F51 #613F40 #614F3F

triadic

#613F40 #40613F #3F4061

tetradic

#613F40 #51613F #3F6160 #4F3F61

square

#613F40 #51613F #3F6160 #4F3F61

split-complementary

#613F40 #3F614F #3F5161

monochromatic

#170F0F #3C2728 #613F40 #865758 #A57576

Accessibility & contrast

On white

9.16

#613F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#613F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #613F40

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##613F40	#FFFFFF	#000000	##FFFFFF
##613F40	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454440

Deuteranopia (green-blind)

#4D4A3F

Tritanopia (blue-blind)

#683C40

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #613f40;
/* rgb */ color: rgb(97, 63, 64);
/* oklch */ color: oklch(40.7% 0.048 17.4);

Tailwind

colors: {
  custom: {
    50: '#8f7474',
    500: '#613f40',
    950: '#000000',
  },
}

SCSS

$custom: #613f40;
$custom-light: #8f7474;
$custom-dark: #000000;

JSON

{
  "hex": "#613f40",
  "rgb": {
    "r": 97,
    "g": 63,
    "b": 64
  },
  "hsl": {
    "h": 358.235,
    "s": 21.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40713,
    "c": 0.04784,
    "h": 17.4
  },
  "luminance": 0.06467
}

Semantic roles & 50–950 ramp

primary

#613F40

secondary

#6B9190

accent

#BEBB6A

background

#F8F7F7

surface

#F0EDED

border

#CBC8C8

text

#0C0808

muted

#7D7B7B

Preview Lab

Preview with #613F40

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

Preview Lab → · Contrast checker → · Palette generator →