#001F23#001F23

#001F23 is a very dark, muted teal. Relative luminance 0.011; OKLCH L 21.9% C 0.037 H 206.9°. Best body text is #FFFFFF at 17.21:1 contrast (WCAG AA passes).

Color values

HEX#001F23
RGBrgb(0, 31, 35)
HSLhsl(187, 100%, 7%)
HSVhsv(187, 100%, 14%)
CMYKcmyk(100%, 11.4%, 0%, 86.3%)
CIE-LABlab(9.81, -9.78, -6.08)
CIE-LCHlch(9.81, 11.52, 211.85°)
OKLaboklab(21.87% -0.0334 -0.0169)
OKLCHoklch(21.87% 0.037 206.9)
XYZxyz(0.7932, 1.1012, 1.7605)
Luminance0.0110 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#001F23 #230400
analogous
#002316 #001F23 #000E23
triadic
#001F23 #23001F #1F2300
tetradic
#001F23 #160023 #230400 #0E2300
square
#001F23 #160023 #230400 #0E2300
split-complementary
#001F23 #23000E #231600
monochromatic
#001B1F #001B1F #001F23 #005560 #008B9D

Accessibility & contrast

On white

17.21
#001F23 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.22
#001F23 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001F23
17.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##001F23#FFFFFF#000000##FFFFFF
##001F231.0017.211.2217.21
#FFFFFF17.211.0021.001.00
#0000001.2221.001.0021.00
##FFFFFF17.211.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1B1D23
Deuteranopia (green-blind)
#161923
Tritanopia (blue-blind)
#002120
Achromatopsia (no color)
#1B1B1B

Design tokens & code

CSS
--color: #001f23;
/* rgb */ color: rgb(0, 31, 35);
/* oklch */ color: oklch(21.9% 0.037 206.9);
Tailwind
colors: {
  custom: {
    50: '#465a5d',
    500: '#001f23',
    950: '#000000',
  },
}
SCSS
$custom: #001f23;
$custom-light: #465a5d;
$custom-dark: #000000;
JSON
{
  "hex": "#001f23",
  "rgb": {
    "r": 0,
    "g": 31,
    "b": 35
  },
  "hsl": {
    "h": 186.857,
    "s": 100,
    "l": 6.863
  },
  "oklch": {
    "l": 0.21867,
    "c": 0.03748,
    "h": 206.9
  },
  "luminance": 0.01101
}

Semantic roles & 50–950 ramp

primary
#001F23
secondary
#6C1D13
accent
#4129FF
background
#F4F5F5
surface
#E6E9E9
border
#C2C5C5
text
#000404
muted
#777979

Preview Lab

Preview with #001F23

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

Preview Lab → · Contrast checker → · Palette generator →

#001F23 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva