#040330#040330

#040330 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.4% C 0.087 H 271.2°. Best body text is #FFFFFF at 19.80:1 contrast (WCAG AA passes).

Color values

HEX	#040330
RGB	rgb(4, 3, 48)
HSL	hsl(241, 88%, 10%)
HSV	hsv(241, 94%, 19%)
CMYK	cmyk(91.7%, 93.8%, 0%, 81.2%)
CIE-LAB	lab(2.75, 13.39, -26.86)
CIE-LCH	lch(2.75, 30.01, 296.49°)
OKLab	oklab(15.4% 0.0018 -0.0874)
OKLCH	oklch(15.4% 0.087 271.2)
XYZ	xyz(0.6160, 0.3043, 2.8220)
Luminance	0.0030 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040330 #2F3003

analogous

#031930 #040330 #1A0330

triadic

#040330 #300403 #033004

tetradic

#040330 #300319 #2F3003 #03301A

square

#040330 #300319 #2F3003 #03301A

split-complementary

#040330 #301A03 #193003

monochromatic

#02021D #02021D #040330 #09076A #0E0AA3

Accessibility & contrast

On white

19.80

#040330 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040330 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040330

19.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040330	#FFFFFF	#000000	##FFFFFF
##040330	1.00	19.80	1.06	19.80
#FFFFFF	19.80	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C31

Deuteranopia (green-blind)

#00082F

Tritanopia (blue-blind)

#001019

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #040330;
/* rgb */ color: rgb(4, 3, 48);
/* oklch */ color: oklch(15.4% 0.087 271.2);

Tailwind

colors: {
  custom: {
    50: '#4a4869',
    500: '#040330',
    950: '#000000',
  },
}

SCSS

$custom: #040330;
$custom-light: #4a4869;
$custom-dark: #000000;

JSON

{
  "hex": "#040330",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 48
  },
  "hsl": {
    "h": 241.333,
    "s": 88.235,
    "l": 10
  },
  "oklch": {
    "l": 0.15403,
    "c": 0.08744,
    "h": 271.2
  },
  "luminance": 0.00304
}

Semantic roles & 50–950 ramp

primary

#040330

secondary

#72731B

accent

#FE29FA

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010006

muted

#77777A

Preview Lab

Preview with #040330

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

Preview Lab → · Contrast checker → · Palette generator →