#040A03#040A03

#040A03 is a very dark, muted green. Relative luminance 0.002; OKLCH L 13.3% C 0.023 H 139.6°. Best body text is #FFFFFF at 20.00:1 contrast (WCAG AA passes).

Color values

HEX	#040A03
RGB	rgb(4, 10, 3)
HSL	hsl(111, 54%, 3%)
HSV	hsv(111, 70%, 4%)
CMYK	cmyk(60%, 0%, 70%, 96.1%)
CIE-LAB	lab(2.25, -2.55, 2.10)
CIE-LCH	lch(2.25, 3.30, 140.53°)
OKLab	oklab(13.34% -0.0178 0.0152)
OKLCH	oklch(13.34% 0.023 139.6)
XYZ	xyz(0.1750, 0.2495, 0.1251)
Luminance	0.0025 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040A03 #09030A

analogous

#070A03 #040A03 #030A06

triadic

#040A03 #03040A #0A0304

tetradic

#040A03 #03070A #09030A #0A0603

square

#040A03 #03070A #09030A #0A0603

split-complementary

#040A03 #06030A #0A0307

monochromatic

#091807 #091807 #091807 #173911 #2A681F

Accessibility & contrast

On white

20.00

#040A03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#040A03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040A03

20.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040A03	#FFFFFF	#000000	##FFFFFF
##040A03	1.00	20.00	1.05	20.00
#FFFFFF	20.00	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	20.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B0903

Deuteranopia (green-blind)

#090803

Tritanopia (blue-blind)

#040908

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #040a03;
/* rgb */ color: rgb(4, 10, 3);
/* oklch */ color: oklch(13.3% 0.023 139.6);

Tailwind

colors: {
  custom: {
    50: '#484b48',
    500: '#040a03',
    950: '#000000',
  },
}

SCSS

$custom: #040a03;
$custom-light: #484b48;
$custom-dark: #000000;

JSON

{
  "hex": "#040a03",
  "rgb": {
    "r": 4,
    "g": 10,
    "b": 3
  },
  "hsl": {
    "h": 111.429,
    "s": 53.846,
    "l": 2.549
  },
  "oklch": {
    "l": 0.13336,
    "c": 0.0234,
    "h": 139.6
  },
  "luminance": 0.00249
}

Semantic roles & 50–950 ramp

primary

#040A03

secondary

#432148

accent

#4BDDC8

background

#F4F4F4

surface

#E6E7E6

border

#C2C3C2

text

#000100

muted

#777777

Preview Lab

Preview with #040A03

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

Preview Lab → · Contrast checker → · Palette generator →