#001F2B#001F2B

#001F2B is a very dark, muted cyan. Relative luminance 0.012; OKLCH L 22.3% C 0.043 H 227.5°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#001F2B
RGB	rgb(0, 31, 43)
HSL	hsl(197, 100%, 8%)
HSV	hsv(197, 100%, 17%)
CMYK	cmyk(100%, 27.9%, 0%, 83.1%)
CIE-LAB	lab(10.22, -6.22, -11.33)
CIE-LCH	lch(10.22, 12.93, 241.25°)
OKLab	oklab(22.33% -0.0293 -0.032)
OKLCH	oklch(22.33% 0.043 227.5)
XYZ	xyz(0.9258, 1.1543, 2.4590)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001F2B #2B0C00

analogous

#002B21 #001F2B #00092B

triadic

#001F2B #2B001F #1F2B00

tetradic

#001F2B #21002B #2B0C00 #092B00

square

#001F2B #21002B #2B0C00 #092B00

split-complementary

#001F2B #2B0009 #2B2100

monochromatic

#00161F #00161F #001F2B #004B68 #0077A5

Accessibility & contrast

On white

17.06

#001F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#001F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001F2B

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001F2B	#FFFFFF	#000000	##FFFFFF
##001F2B	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191E2C

Deuteranopia (green-blind)

#131A2B

Tritanopia (blue-blind)

#002223

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #001f2b;
/* rgb */ color: rgb(0, 31, 43);
/* oklch */ color: oklch(22.3% 0.043 227.5);

Tailwind

colors: {
  custom: {
    50: '#485a64',
    500: '#001f2b',
    950: '#000000',
  },
}

SCSS

$custom: #001f2b;
$custom-light: #485a64;
$custom-dark: #000000;

JSON

{
  "hex": "#001f2b",
  "rgb": {
    "r": 0,
    "g": 31,
    "b": 43
  },
  "hsl": {
    "h": 196.744,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.22331,
    "c": 0.04334,
    "h": 227.5
  },
  "luminance": 0.01154
}

Semantic roles & 50–950 ramp

primary

#001F2B

secondary

#732F14

accent

#6529FF

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010305

muted

#777879

Preview Lab

Preview with #001F2B

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

Preview Lab → · Contrast checker → · Palette generator →