#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
RGB	rgb(0, 31, 35)
HSL	hsl(187, 100%, 7%)
HSV	hsv(187, 100%, 14%)
CMYK	cmyk(100%, 11.4%, 0%, 86.3%)
CIE-LAB	lab(9.81, -9.78, -6.08)
CIE-LCH	lch(9.81, 11.52, 211.85°)
OKLab	oklab(21.87% -0.0334 -0.0169)
OKLCH	oklch(21.87% 0.037 206.9)
XYZ	xyz(0.7932, 1.1012, 1.7605)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	teal

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
##001F23	1.00	17.21	1.22	17.21
#FFFFFF	17.21	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.21	1.00	21.00	1.00

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 →