#210109#210109

#210109 is a very dark, moderate red. Relative luminance 0.004; OKLCH L 16.2% C 0.061 H 7.2°. Best body text is #FFFFFF at 19.57:1 contrast (WCAG AA passes).

Color values

HEX	#210109
RGB	rgb(33, 1, 9)
HSL	hsl(345, 94%, 7%)
HSV	hsv(345, 97%, 13%)
CMYK	cmyk(0%, 97%, 72.7%, 87.1%)
CIE-LAB	lab(3.30, 13.95, 1.50)
CIE-LCH	lch(3.30, 14.03, 6.13°)
OKLab	oklab(16.18% 0.0602 0.0076)
OKLCH	oklch(16.18% 0.061 7.2)
XYZ	xyz(0.6874, 0.3649, 0.2926)
Luminance	0.0037 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210109 #012119

analogous

#210119 #210109 #210901

triadic

#210109 #092101 #010921

tetradic

#210109 #192101 #012119 #090121

square

#210109 #192101 #012119 #090121

split-complementary

#210109 #012109 #011921

monochromatic

#1E0108 #1E0108 #210109 #5C0319 #980529

Accessibility & contrast

On white

19.57

#210109 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#210109 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210109

19.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210109	#FFFFFF	#000000	##FFFFFF
##210109	1.00	19.57	1.07	19.57
#FFFFFF	19.57	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070709

Deuteranopia (green-blind)

#100F08

Tritanopia (blue-blind)

#250004

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #210109;
/* rgb */ color: rgb(33, 1, 9);
/* oklch */ color: oklch(16.2% 0.061 7.2);

Tailwind

colors: {
  custom: {
    50: '#5c474b',
    500: '#210109',
    950: '#000000',
  },
}

SCSS

$custom: #210109;
$custom-light: #5c474b;
$custom-dark: #000000;

JSON

{
  "hex": "#210109",
  "rgb": {
    "r": 33,
    "g": 1,
    "b": 9
  },
  "hsl": {
    "h": 345,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.16182,
    "c": 0.06065,
    "h": 7.2
  },
  "luminance": 0.00365
}

Semantic roles & 50–950 ramp

primary

#210109

secondary

#156854

accent

#FFC929

background

#F5F3F4

surface

#E9E5E7

border

#C5C1C3

text

#040001

muted

#797777

Preview Lab

Preview with #210109

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

Preview Lab → · Contrast checker → · Palette generator →