#040503#040503

#040503 is a very dark, near-neutral yellow-green. Relative luminance 0.001; OKLCH L 11.1% C 0.008 H 127.9°. Best body text is #FFFFFF at 20.42:1 contrast (WCAG AA passes).

Color values

HEX	#040503
RGB	rgb(4, 5, 3)
HSL	hsl(90, 25%, 2%)
HSV	hsv(90, 40%, 2%)
CMYK	cmyk(20%, 0%, 40%, 98%)
CIE-LAB	lab(1.27, -0.54, 0.66)
CIE-LCH	lch(1.27, 0.85, 128.99°)
OKLab	oklab(11.14% -0.0051 0.0065)
OKLCH	oklch(11.14% 0.008 127.9)
XYZ	xyz(0.1208, 0.1409, 0.1070)
Luminance	0.0014 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040503 #040305

analogous

#050503 #040503 #030503

triadic

#040503 #030405 #050304

tetradic

#040503 #030505 #040305 #050303

square

#040503 #030505 #040305 #050303

split-complementary

#040503 #030305 #050305

monochromatic

#0F130B #0F130B #0F130B #232B1A #415231

Accessibility & contrast

On white

20.42

#040503 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#040503 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040503

20.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040503	#FFFFFF	#000000	##FFFFFF
##040503	1.00	20.42	1.03	20.42
#FFFFFF	20.42	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#050503

Deuteranopia (green-blind)

#050503

Tritanopia (blue-blind)

#040504

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #040503;
/* rgb */ color: rgb(4, 5, 3);
/* oklch */ color: oklch(11.1% 0.008 127.9);

Tailwind

colors: {
  custom: {
    50: '#484948',
    500: '#040503',
    950: '#000000',
  },
}

SCSS

$custom: #040503;
$custom-light: #484948;
$custom-dark: #000000;

JSON

{
  "hex": "#040503",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 3
  },
  "hsl": {
    "h": 90,
    "s": 25,
    "l": 1.569
  },
  "oklch": {
    "l": 0.11143,
    "c": 0.00824,
    "h": 127.9
  },
  "luminance": 0.00141
}

Semantic roles & 50–950 ramp

primary

#040503

secondary

#32293B

accent

#66C194

background

#F4F4F4

surface

#E6E6E6

border

#C2C2C2

text

#000000

muted

#777777

Preview Lab

Preview with #040503

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

Preview Lab → · Contrast checker → · Palette generator →