#641428#641428

#641428 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.113 H 11.4°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#641428
RGB	rgb(100, 20, 40)
HSL	hsl(345, 67%, 24%)
HSV	hsv(345, 80%, 39%)
CMYK	cmyk(0%, 80%, 60%, 60.8%)
CIE-LAB	lab(21.45, 36.45, 8.91)
CIE-LCH	lch(21.45, 37.52, 13.73°)
OKLab	oklab(33.72% 0.1103 0.0223)
OKLCH	oklch(33.72% 0.113 11.4)
XYZ	xyz(5.8893, 3.3637, 2.3462)
Luminance	0.0336 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641428 #146450

analogous

#641450 #641428 #642814

triadic

#641428 #286414 #142864

tetradic

#641428 #506414 #146450 #281464

square

#641428 #506414 #146450 #281464

split-complementary

#641428 #146428 #145064

monochromatic

#1A050A #310A14 #641428 #971E3C #CA2851

Accessibility & contrast

On white

12.56

#641428 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#641428 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641428

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641428	#FFFFFF	#000000	##FFFFFF
##641428	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292928

Deuteranopia (green-blind)

#3E3926

Tritanopia (blue-blind)

#6E001C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #641428;
/* rgb */ color: rgb(100, 20, 40);
/* oklch */ color: oklch(33.7% 0.113 11.4);

Tailwind

colors: {
  custom: {
    50: '#955a61',
    500: '#641428',
    950: '#000000',
  },
}

SCSS

$custom: #641428;
$custom-light: #955a61;
$custom-dark: #000000;

JSON

{
  "hex": "#641428",
  "rgb": {
    "r": 100,
    "g": 20,
    "b": 40
  },
  "hsl": {
    "h": 345,
    "s": 66.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33717,
    "c": 0.11252,
    "h": 11.4
  },
  "luminance": 0.03363
}

Semantic roles & 50–950 ramp

primary

#641428

secondary

#389B83

accent

#EABF3E

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #641428

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

Preview Lab → · Contrast checker → · Palette generator →