#040F01#040F01

#040F01 is a very dark, muted green. Relative luminance 0.004; OKLCH L 15.1% C 0.040 H 136.6°. Best body text is #FFFFFF at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#040F01
RGB	rgb(4, 15, 1)
HSL	hsl(107, 88%, 3%)
HSV	hsv(107, 93%, 6%)
CMYK	cmyk(73.3%, 0%, 93.3%, 94.1%)
CIE-LAB	lab(3.34, -5.12, 4.50)
CIE-LCH	lch(3.34, 6.81, 138.69°)
OKLab	oklab(15.11% -0.0293 0.0276)
OKLCH	oklch(15.11% 0.04 136.6)
XYZ	xyz(0.2264, 0.3696, 0.0881)
Luminance	0.0037 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040F01 #0C010F

analogous

#0B0F01 #040F01 #010F05

triadic

#040F01 #01040F #0F0104

tetradic

#040F01 #010B0F #0C010F #0F0501

square

#040F01 #010B0F #0C010F #0F0501

split-complementary

#040F01 #05010F #0F010B

monochromatic

#081D02 #081D02 #081D02 #134805 #238209

Accessibility & contrast

On white

19.55

#040F01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040F01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040F01

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040F01	#FFFFFF	#000000	##FFFFFF
##040F01	1.00	19.55	1.07	19.55
#FFFFFF	19.55	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100D00

Deuteranopia (green-blind)

#0E0C02

Tritanopia (blue-blind)

#040E0B

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040f01;
/* rgb */ color: rgb(4, 15, 1);
/* oklch */ color: oklch(15.1% 0.040 136.6);

Tailwind

colors: {
  custom: {
    50: '#484e47',
    500: '#040f01',
    950: '#000000',
  },
}

SCSS

$custom: #040f01;
$custom-light: #484e47;
$custom-dark: #000000;

JSON

{
  "hex": "#040f01",
  "rgb": {
    "r": 4,
    "g": 15,
    "b": 1
  },
  "hsl": {
    "h": 107.143,
    "s": 87.5,
    "l": 3.137
  },
  "oklch": {
    "l": 0.1511,
    "c": 0.04026,
    "h": 136.6
  },
  "luminance": 0.0037
}

Semantic roles & 50–950 ramp

primary

#040F01

secondary

#491557

accent

#2AFED0

background

#F4F4F3

surface

#E6E7E5

border

#C2C3C1

text

#000100

muted

#777777

Preview Lab

Preview with #040F01

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

Preview Lab → · Contrast checker → · Palette generator →