#040433#040433

#040433 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.1% C 0.090 H 270.3°. Best body text is #FFFFFF at 19.62:1 contrast (WCAG AA passes).

Color values

HEX	#040433
RGB	rgb(4, 4, 51)
HSL	hsl(240, 85%, 11%)
HSV	hsv(240, 92%, 20%)
CMYK	cmyk(92.2%, 92.2%, 0%, 80%)
CIE-LAB	lab(3.18, 14.61, -28.42)
CIE-LCH	lch(3.18, 31.95, 297.21°)
OKLab	oklab(16.11% 0.0005 -0.09)
OKLCH	oklch(16.11% 0.09 270.3)
XYZ	xyz(0.6908, 0.3516, 3.1628)
Luminance	0.0035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040433 #333304

analogous

#041B33 #040433 #1B0433

triadic

#040433 #330404 #043304

tetradic

#040433 #33041B #333304 #04331B

square

#040433 #33041B #333304 #04331B

split-complementary

#040433 #331B04 #1B3304

monochromatic

#02021C #02021C #040433 #08086C #0D0DA4

Accessibility & contrast

On white

19.62

#040433 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040433 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040433

19.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040433	#FFFFFF	#000000	##FFFFFF
##040433	1.00	19.62	1.07	19.62
#FFFFFF	19.62	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E34

Deuteranopia (green-blind)

#000932

Tritanopia (blue-blind)

#00121B

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040433;
/* rgb */ color: rgb(4, 4, 51);
/* oklch */ color: oklch(16.1% 0.090 270.3);

Tailwind

colors: {
  custom: {
    50: '#4b486b',
    500: '#040433',
    950: '#000000',
  },
}

SCSS

$custom: #040433;
$custom-light: #4b486b;
$custom-dark: #000000;

JSON

{
  "hex": "#040433",
  "rgb": {
    "r": 4,
    "g": 4,
    "b": 51
  },
  "hsl": {
    "h": 240,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.16109,
    "c": 0.08996,
    "h": 270.3
  },
  "luminance": 0.00352
}

Semantic roles & 50–950 ramp

primary

#040433

secondary

#75751D

accent

#FC2CFC

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010007

muted

#77777A

Preview Lab

Preview with #040433

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

Preview Lab → · Contrast checker → · Palette generator →