#040300#040300

#040300 is a very dark, muted yellow. Relative luminance 0.001; OKLCH L 9.7% C 0.020 H 99.3°. Best body text is #FFFFFF at 20.62:1 contrast (WCAG AA passes).

Color values

HEX	#040300
RGB	rgb(4, 3, 0)
HSL	hsl(45, 100%, 1%)
HSV	hsv(45, 100%, 2%)
CMYK	cmyk(0%, 25%, 100%, 98.4%)
CIE-LAB	lab(0.82, -0.16, 1.23)
CIE-LCH	lch(0.82, 1.24, 97.23°)
OKLab	oklab(9.66% -0.0032 0.0198)
OKLCH	oklch(9.66% 0.02 99.3)
XYZ	xyz(0.0826, 0.0909, 0.0132)
Luminance	0.0009 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040300 #000104

analogous

#040100 #040300 #030400

triadic

#040300 #000403 #030004

tetradic

#040300 #000401 #000104 #040003

square

#040300 #000401 #000104 #040003

split-complementary

#040300 #000304 #010004

monochromatic

#1F1700 #1F1700 #1F1700 #413100 #7E5F00

Accessibility & contrast

On white

20.62

#040300 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#040300 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040300

20.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040300	#FFFFFF	#000000	##FFFFFF
##040300	1.00	20.62	1.02	20.62
#FFFFFF	20.62	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040300

Deuteranopia (green-blind)

#040300

Tritanopia (blue-blind)

#050202

Achromatopsia (no color)

#030303

Design tokens & code

CSS

--color: #040300;
/* rgb */ color: rgb(4, 3, 0);
/* oklch */ color: oklch(9.7% 0.020 99.3);

Tailwind

colors: {
  custom: {
    50: '#484847',
    500: '#040300',
    950: '#000000',
  },
}

SCSS

$custom: #040300;
$custom-light: #484847;
$custom-dark: #000000;

JSON

{
  "hex": "#040300",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 0
  },
  "hsl": {
    "h": 45,
    "s": 100,
    "l": 0.784
  },
  "oklch": {
    "l": 0.09664,
    "c": 0.02005,
    "h": 99.3
  },
  "luminance": 0.00091
}

Semantic roles & 50–950 ramp

primary

#040300

secondary

#0E1F51

accent

#5EFF29

background

#F4F4F3

surface

#E6E6E5

border

#C2C2C1

text

#000000

muted

#777777

Preview Lab

Preview with #040300

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

Preview Lab → · Contrast checker → · Palette generator →