#641729#641729

#641729 is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.109 H 11.7°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#641729
RGB	rgb(100, 23, 41)
HSL	hsl(346, 63%, 24%)
HSV	hsv(346, 77%, 39%)
CMYK	cmyk(0%, 77%, 59%, 60.8%)
CIE-LAB	lab(21.88, 35.38, 8.81)
CIE-LCH	lch(21.88, 36.46, 13.98°)
OKLab	oklab(34.05% 0.107 0.0221)
OKLCH	oklch(34.05% 0.109 11.7)
XYZ	xyz(5.9627, 3.4830, 2.4557)
Luminance	0.0348 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641729 #176452

analogous

#641750 #641729 #642C17

triadic

#641729 #296417 #172964

tetradic

#641729 #506417 #176452 #2C1764

square

#641729 #506417 #176452 #2C1764

split-complementary

#641729 #17642C #175064

monochromatic

#19060A #320C15 #641729 #96223D #C82E52

Accessibility & contrast

On white

12.38

#641729 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#641729 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641729

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641729	#FFFFFF	#000000	##FFFFFF
##641729	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2A29

Deuteranopia (green-blind)

#3F3A27

Tritanopia (blue-blind)

#6E041E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #641729;
/* rgb */ color: rgb(100, 23, 41);
/* oklch */ color: oklch(34.0% 0.109 11.7);

Tailwind

colors: {
  custom: {
    50: '#955b62',
    500: '#641729',
    950: '#000000',
  },
}

SCSS

$custom: #641729;
$custom-light: #955b62;
$custom-dark: #000000;

JSON

{
  "hex": "#641729",
  "rgb": {
    "r": 100,
    "g": 23,
    "b": 41
  },
  "hsl": {
    "h": 345.974,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.34049,
    "c": 0.10927,
    "h": 11.7
  },
  "luminance": 0.03482
}

Semantic roles & 50–950 ramp

primary

#641729

secondary

#3C9A84

accent

#E6BF42

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #641729

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

Preview Lab → · Contrast checker → · Palette generator →