#641528#641528

#641528 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.111 H 11.8°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#641528
RGB	rgb(100, 21, 40)
HSL	hsl(346, 65%, 24%)
HSV	hsv(346, 79%, 39%)
CMYK	cmyk(0%, 79%, 60%, 60.8%)
CIE-LAB	lab(21.58, 36.08, 9.09)
CIE-LCH	lch(21.58, 37.21, 14.14°)
OKLab	oklab(33.82% 0.1091 0.0228)
OKLCH	oklch(33.82% 0.111 11.8)
XYZ	xyz(5.9073, 3.3997, 2.3522)
Luminance	0.0340 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641528 #156451

analogous

#64154F #641528 #642915

triadic

#641528 #286415 #152864

tetradic

#641528 #4F6415 #156451 #291564

square

#641528 #4F6415 #156451 #291564

split-complementary

#641528 #156429 #154F64

monochromatic

#19050A #310A14 #641528 #97203C #C92A50

Accessibility & contrast

On white

12.50

#641528 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#641528 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641528

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641528	#FFFFFF	#000000	##FFFFFF
##641528	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2928

Deuteranopia (green-blind)

#3E3A26

Tritanopia (blue-blind)

#6E001D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #641528;
/* rgb */ color: rgb(100, 21, 40);
/* oklch */ color: oklch(33.8% 0.111 11.8);

Tailwind

colors: {
  custom: {
    50: '#955a61',
    500: '#641528',
    950: '#000000',
  },
}

SCSS

$custom: #641528;
$custom-light: #955a61;
$custom-dark: #000000;

JSON

{
  "hex": "#641528",
  "rgb": {
    "r": 100,
    "g": 21,
    "b": 40
  },
  "hsl": {
    "h": 345.57,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33816,
    "c": 0.11143,
    "h": 11.8
  },
  "luminance": 0.03399
}

Semantic roles & 50–950 ramp

primary

#641528

secondary

#3A9B84

accent

#E8C040

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #641528

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

Preview Lab → · Contrast checker → · Palette generator →