#040533#040533

#040533 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.4% C 0.088 H 270.0°. Best body text is #FFFFFF at 19.54:1 contrast (WCAG AA passes).

Color values

HEX	#040533
RGB	rgb(4, 5, 51)
HSL	hsl(239, 85%, 11%)
HSV	hsv(239, 92%, 20%)
CMYK	cmyk(92.2%, 90.2%, 0%, 80%)
CIE-LAB	lab(3.37, 14.21, -28.10)
CIE-LCH	lch(3.37, 31.49, 296.82°)
OKLab	oklab(16.36% 0 -0.0883)
OKLCH	oklch(16.36% 0.088 270)
XYZ	xyz(0.7017, 0.3733, 3.1664)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040533 #333204

analogous

#041C33 #040533 #1A0433

triadic

#040533 #330405 #053304

tetradic

#040533 #33041C #333204 #04331A

square

#040533 #33041C #333204 #04331A

split-complementary

#040533 #331A04 #1C3304

monochromatic

#02031C #02031C #040533 #080B6C #0D10A4

Accessibility & contrast

On white

19.54

#040533 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040533 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040533

19.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040533	#FFFFFF	#000000	##FFFFFF
##040533	1.00	19.54	1.07	19.54
#FFFFFF	19.54	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F34

Deuteranopia (green-blind)

#000A32

Tritanopia (blue-blind)

#00121B

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040533;
/* rgb */ color: rgb(4, 5, 51);
/* oklch */ color: oklch(16.4% 0.088 270.0);

Tailwind

colors: {
  custom: {
    50: '#4b486b',
    500: '#040533',
    950: '#000000',
  },
}

SCSS

$custom: #040533;
$custom-light: #4b486b;
$custom-dark: #000000;

JSON

{
  "hex": "#040533",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 51
  },
  "hsl": {
    "h": 238.723,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.16358,
    "c": 0.08828,
    "h": 270
  },
  "luminance": 0.00373
}

Semantic roles & 50–950 ramp

primary

#040533

secondary

#75731D

accent

#F72CFC

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010007

muted

#77777A

Preview Lab

Preview with #040533

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

Preview Lab → · Contrast checker → · Palette generator →