#641A1A#641A1A

#641A1A is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.1% C 0.106 H 24.8°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#641A1A
RGB	rgb(100, 26, 26)
HSL	hsl(0, 59%, 25%)
HSV	hsv(0, 74%, 39%)
CMYK	cmyk(0%, 74%, 74%, 60.8%)
CIE-LAB	lab(22.03, 33.07, 19.26)
CIE-LCH	lch(22.03, 38.27, 30.22°)
OKLab	oklab(34.06% 0.0965 0.0445)
OKLCH	oklch(34.06% 0.106 24.8)
XYZ	xyz(5.8120, 3.5235, 1.3512)
Luminance	0.0352 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641A1A #1A6464

analogous

#641A3F #641A1A #643F1A

triadic

#641A1A #1A641A #1A1A64

tetradic

#641A1A #3F641A #1A6464 #3F1A64

square

#641A1A #3F641A #1A6464 #3F1A64

split-complementary

#641A1A #1A643F #1A3F64

monochromatic

#180606 #330D0D #641A1A #952727 #C53333

Accessibility & contrast

On white

12.32

#641A1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#641A1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641A1A

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641A1A	#FFFFFF	#000000	##FFFFFF
##641A1A	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2B19

Deuteranopia (green-blind)

#413B18

Tritanopia (blue-blind)

#6E041B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641a1a;
/* rgb */ color: rgb(100, 26, 26);
/* oklch */ color: oklch(34.1% 0.106 24.8);

Tailwind

colors: {
  custom: {
    50: '#965c56',
    500: '#641a1a',
    950: '#000000',
  },
}

SCSS

$custom: #641a1a;
$custom-light: #965c56;
$custom-dark: #000000;

JSON

{
  "hex": "#641a1a",
  "rgb": {
    "r": 100,
    "g": 26,
    "b": 26
  },
  "hsl": {
    "h": 0,
    "s": 58.73,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34059,
    "c": 0.10624,
    "h": 24.8
  },
  "luminance": 0.03523
}

Semantic roles & 50–950 ramp

primary

#641A1A

secondary

#409A9A

accent

#E2E246

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #641A1A

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

Preview Lab → · Contrast checker → · Palette generator →