#6B1523#6B1523

#6B1523 is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.1% C 0.119 H 17.2°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#6B1523
RGB	rgb(107, 21, 35)
HSL	hsl(350, 67%, 25%)
HSV	hsv(350, 80%, 42%)
CMYK	cmyk(0%, 80.4%, 67.3%, 58%)
CIE-LAB	lab(22.95, 38.01, 14.64)
CIE-LCH	lch(22.95, 40.73, 21.06°)
OKLab	oklab(35.06% 0.1133 0.0352)
OKLCH	oklch(35.06% 0.119 17.2)
XYZ	xyz(6.6356, 3.7845, 1.9709)
Luminance	0.0378 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B1523 #156B5D

analogous

#6B154E #6B1523 #6B3215

triadic

#6B1523 #236B15 #15236B

tetradic

#6B1523 #4E6B15 #156B5D #32156B

square

#6B1523 #4E6B15 #156B5D #32156B

split-complementary

#6B1523 #156B32 #154E6B

monochromatic

#1A0508 #380B12 #6B1523 #9E1F34 #D12944

Accessibility & contrast

On white

11.95

#6B1523 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#6B1523 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B1523

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B1523	#FFFFFF	#000000	##FFFFFF
##6B1523	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)

#2E2B23

Deuteranopia (green-blind)

#433D21

Tritanopia (blue-blind)

#76001B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #6b1523;
/* rgb */ color: rgb(107, 21, 35);
/* oklch */ color: oklch(35.1% 0.119 17.2);

Tailwind

colors: {
  custom: {
    50: '#9b5b5d',
    500: '#6b1523',
    950: '#000000',
  },
}

SCSS

$custom: #6b1523;
$custom-light: #9b5b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#6b1523",
  "rgb": {
    "r": 107,
    "g": 21,
    "b": 35
  },
  "hsl": {
    "h": 350.233,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3506,
    "c": 0.11863,
    "h": 17.2
  },
  "luminance": 0.03783
}

Semantic roles & 50–950 ramp

primary

#6B1523

secondary

#3AA291

accent

#EACE3E

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0404

muted

#7F7979

Preview Lab

Preview with #6B1523

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

Preview Lab → · Contrast checker → · Palette generator →