#64333B#64333B

#64333B is a dark, moderate red. Relative luminance 0.054; OKLCH L 38.7% C 0.071 H 10.5°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX#64333B
RGBrgb(100, 51, 59)
HSLhsl(350, 32%, 30%)
HSVhsv(350, 49%, 39%)
CMYKcmyk(0%, 49%, 41%, 60.8%)
CIE-LABlab(27.83, 22.93, 4.93)
CIE-LCHlch(27.83, 23.46, 12.12°)
OKLaboklab(38.67% 0.0695 0.0129)
OKLCHoklch(38.67% 0.071 10.5)
XYZxyz(7.2291, 5.3934, 4.7971)
Luminance0.0539 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#64333B #33645C
analogous
#643354 #64333B #644433
triadic
#64333B #3B6433 #333B64
tetradic
#64333B #546433 #33645C #443364
square
#64333B #546433 #33645C #443364
split-complementary
#64333B #336444 #335464
monochromatic
#140A0C #3B1E23 #64333B #8D4853 #AF626F

Accessibility & contrast

On white

10.10
#64333B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.08
#64333B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64333B
10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##64333B#FFFFFF#000000##FFFFFF
##64333B1.0010.102.0810.10
#FFFFFF10.101.0021.001.00
#0000002.0821.001.0021.00
##FFFFFF10.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3C3C3B
Deuteranopia (green-blind)
#48453A
Tritanopia (blue-blind)
#6C2E36
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #64333b;
/* rgb */ color: rgb(100, 51, 59);
/* oklch */ color: oklch(38.7% 0.071 10.5);
Tailwind
colors: {
  custom: {
    50: '#926c70',
    500: '#64333b',
    950: '#000000',
  },
}
SCSS
$custom: #64333b;
$custom-light: #926c70;
$custom-dark: #000000;
JSON
{
  "hex": "#64333b",
  "rgb": {
    "r": 100,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 350.204,
    "s": 32.45,
    "l": 29.608
  },
  "oklch": {
    "l": 0.38669,
    "c": 0.07073,
    "h": 10.5
  },
  "luminance": 0.05393
}

Semantic roles & 50–950 ramp

primary
#64333B
secondary
#5E958C
accent
#C9B75F
background
#F9F6F6
surface
#F1EBEC
border
#CBC6C7
text
#0D0707
muted
#7E7A7A

Preview Lab

Preview with #64333B

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

Preview Lab → · Contrast checker → · Palette generator →

#64333B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva