#641628#641628

#641628 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.9% C 0.110 H 12.1°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX#641628
RGBrgb(100, 22, 40)
HSLhsl(346, 64%, 24%)
HSVhsv(346, 78%, 39%)
CMYKcmyk(0%, 78%, 60%, 60.8%)
CIE-LABlab(21.72, 35.70, 9.28)
CIE-LCHlch(21.72, 36.88, 14.57°)
OKLaboklab(33.92% 0.1079 0.0232)
OKLCHoklch(33.92% 0.11 12.1)
XYZxyz(5.9260, 3.4372, 2.3585)
Luminance0.0344 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#641628 #166452
analogous
#64164F #641628 #642B16
triadic
#641628 #286416 #162864
tetradic
#641628 #4F6416 #166452 #2B1664
square
#641628 #4F6416 #166452 #2B1664
split-complementary
#641628 #16642B #164F64
monochromatic
#19060A #320B14 #641628 #96213C #C82C50

Accessibility & contrast

On white

12.45
#641628 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.69
#641628 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641628
12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##641628#FFFFFF#000000##FFFFFF
##6416281.0012.451.6912.45
#FFFFFF12.451.0021.001.00
#0000001.6921.001.0021.00
##FFFFFF12.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2A2A28
Deuteranopia (green-blind)
#3E3A26
Tritanopia (blue-blind)
#6E021D
Achromatopsia (no color)
#343434

Design tokens & code

CSS
--color: #641628;
/* rgb */ color: rgb(100, 22, 40);
/* oklch */ color: oklch(33.9% 0.110 12.1);
Tailwind
colors: {
  custom: {
    50: '#955b61',
    500: '#641628',
    950: '#000000',
  },
}
SCSS
$custom: #641628;
$custom-light: #955b61;
$custom-dark: #000000;
JSON
{
  "hex": "#641628",
  "rgb": {
    "r": 100,
    "g": 22,
    "b": 40
  },
  "hsl": {
    "h": 346.154,
    "s": 63.934,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33918,
    "c": 0.11032,
    "h": 12.1
  },
  "luminance": 0.03436
}

Semantic roles & 50–950 ramp

primary
#641628
secondary
#3B9B85
accent
#E7C141
background
#F9F5F5
surface
#F2E9E9
border
#CCC5C5
text
#0E0405
muted
#7E7979

Preview Lab

Preview with #641628

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

Preview Lab → · Contrast checker → · Palette generator →

#641628 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva