#641017#641017

#641017 is a dark, moderate red. Relative luminance 0.031; OKLCH L 33.0% C 0.116 H 22.6°. Best body text is #FFFFFF at 12.90:1 contrast (WCAG AA passes).

Color values

HEX	#641017
RGB	rgb(100, 16, 23)
HSL	hsl(355, 72%, 23%)
HSV	hsv(355, 84%, 39%)
CMYK	cmyk(0%, 84%, 77%, 60.8%)
CIE-LAB	lab(20.61, 36.73, 19.59)
CIE-LCH	lch(20.61, 41.62, 28.07°)
OKLab	oklab(32.98% 0.1074 0.0446)
OKLCH	oklch(32.98% 0.116 22.6)
XYZ	xyz(5.5961, 3.1427, 1.1224)
Luminance	0.0314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641017 #10645D

analogous

#641041 #641017 #643310

triadic

#641017 #176410 #101764

tetradic

#641017 #416410 #10645D #331064

square

#641017 #416410 #10645D #331064

split-complementary

#641017 #106433 #104164

monochromatic

#1A0406 #2F080B #641017 #991823 #CE212F

Accessibility & contrast

On white

12.90

#641017 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#641017 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641017

12.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641017	#FFFFFF	#000000	##FFFFFF
##641017	1.00	12.90	1.63	12.90
#FFFFFF	12.90	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2616

Deuteranopia (green-blind)

#3F3814

Tritanopia (blue-blind)

#6F0014

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #641017;
/* rgb */ color: rgb(100, 16, 23);
/* oklch */ color: oklch(33.0% 0.116 22.6);

Tailwind

colors: {
  custom: {
    50: '#975854',
    500: '#641017',
    950: '#000000',
  },
}

SCSS

$custom: #641017;
$custom-light: #975854;
$custom-dark: #000000;

JSON

{
  "hex": "#641017",
  "rgb": {
    "r": 100,
    "g": 16,
    "b": 23
  },
  "hsl": {
    "h": 355,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32984,
    "c": 0.11627,
    "h": 22.6
  },
  "luminance": 0.03142
}

Semantic roles & 50–950 ramp

primary

#641017

secondary

#339D94

accent

#EFE039

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #641017

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

Preview Lab → · Contrast checker → · Palette generator →