#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
RGB	rgb(100, 51, 59)
HSL	hsl(350, 32%, 30%)
HSV	hsv(350, 49%, 39%)
CMYK	cmyk(0%, 49%, 41%, 60.8%)
CIE-LAB	lab(27.83, 22.93, 4.93)
CIE-LCH	lch(27.83, 23.46, 12.12°)
OKLab	oklab(38.67% 0.0695 0.0129)
OKLCH	oklch(38.67% 0.071 10.5)
XYZ	xyz(7.2291, 5.3934, 4.7971)
Luminance	0.0539 (WCAG relative)
Temperature	warm
Family	red

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
##64333B	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

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 →