#000F21#000F21

#000F21 is a very dark, muted cyan. Relative luminance 0.005; OKLCH L 16.5% C 0.046 H 249.1°. Best body text is #FFFFFF at 19.26:1 contrast (WCAG AA passes).

Color values

HEX	#000F21
RGB	rgb(0, 15, 33)
HSL	hsl(213, 100%, 6%)
HSV	hsv(213, 100%, 13%)
CMYK	cmyk(100%, 54.5%, 0%, 87.1%)
CIE-LAB	lab(4.08, 0.66, -13.35)
CIE-LCH	lch(4.08, 13.37, 272.84°)
OKLab	oklab(16.52% -0.0163 -0.0428)
OKLCH	oklch(16.52% 0.046 249.1)
XYZ	xyz(0.4452, 0.4514, 1.5022)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#000F21 #211200

analogous

#002021 #000F21 #010021

triadic

#000F21 #21000F #0F2100

tetradic

#000F21 #210020 #211200 #002101

square

#000F21 #210020 #211200 #002101

split-complementary

#000F21 #210100 #202100

monochromatic

#000E1F #000E1F #000F21 #002B5E #00479B

Accessibility & contrast

On white

19.26

#000F21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#000F21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #000F21

19.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##000F21	#FFFFFF	#000000	##FFFFFF
##000F21	1.00	19.26	1.09	19.26
#FFFFFF	19.26	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061022

Deuteranopia (green-blind)

#020D21

Tritanopia (blue-blind)

#001316

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #000f21;
/* rgb */ color: rgb(0, 15, 33);
/* oklch */ color: oklch(16.5% 0.046 249.1);

Tailwind

colors: {
  custom: {
    50: '#464e5c',
    500: '#000f21',
    950: '#000000',
  },
}

SCSS

$custom: #000f21;
$custom-light: #464e5c;
$custom-dark: #000000;

JSON

{
  "hex": "#000f21",
  "rgb": {
    "r": 0,
    "g": 15,
    "b": 33
  },
  "hsl": {
    "h": 212.727,
    "s": 100,
    "l": 6.471
  },
  "oklch": {
    "l": 0.16523,
    "c": 0.04576,
    "h": 249.1
  },
  "luminance": 0.00451
}

Semantic roles & 50–950 ramp

primary

#000F21

secondary

#6A4213

accent

#9E29FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000104

muted

#767779

Preview Lab

Preview with #000F21

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

Preview Lab → · Contrast checker → · Palette generator →