#230109#230109

#230109 is a very dark, moderate red. Relative luminance 0.004; OKLCH L 16.7% C 0.063 H 8.8°. Best body text is #FFFFFF at 19.45:1 contrast (WCAG AA passes).

Color values

HEX	#230109
RGB	rgb(35, 1, 9)
HSL	hsl(346, 94%, 7%)
HSV	hsv(346, 97%, 14%)
CMYK	cmyk(0%, 97.1%, 74.3%, 86.3%)
CIE-LAB	lab(3.60, 15.33, 1.98)
CIE-LCH	lch(3.60, 15.46, 7.37°)
OKLab	oklab(16.67% 0.0621 0.0096)
OKLCH	oklch(16.67% 0.063 8.8)
XYZ	xyz(0.7534, 0.3989, 0.2957)
Luminance	0.0040 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#230109 #01231B

analogous

#23011A #230109 #230A01

triadic

#230109 #092301 #010923

tetradic

#230109 #1A2301 #01231B #0A0123

square

#230109 #1A2301 #01231B #0A0123

split-complementary

#230109 #01230A #011A23

monochromatic

#1E0108 #1E0108 #230109 #5F0318 #9A0428

Accessibility & contrast

On white

19.45

#230109 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#230109 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #230109

19.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##230109	#FFFFFF	#000000	##FFFFFF
##230109	1.00	19.45	1.08	19.45
#FFFFFF	19.45	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#080809

Deuteranopia (green-blind)

#111008

Tritanopia (blue-blind)

#270004

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #230109;
/* rgb */ color: rgb(35, 1, 9);
/* oklch */ color: oklch(16.7% 0.063 8.8);

Tailwind

colors: {
  custom: {
    50: '#5e464b',
    500: '#230109',
    950: '#000000',
  },
}

SCSS

$custom: #230109;
$custom-light: #5e464b;
$custom-dark: #000000;

JSON

{
  "hex": "#230109",
  "rgb": {
    "r": 35,
    "g": 1,
    "b": 9
  },
  "hsl": {
    "h": 345.882,
    "s": 94.444,
    "l": 7.059
  },
  "oklch": {
    "l": 0.16671,
    "c": 0.06279,
    "h": 8.8
  },
  "luminance": 0.00399
}

Semantic roles & 50–950 ramp

primary

#230109

secondary

#166A56

accent

#FFCD29

background

#F5F3F4

surface

#E9E5E7

border

#C5C1C3

text

#040001

muted

#797777

Preview Lab

Preview with #230109

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

Preview Lab → · Contrast checker → · Palette generator →