#040530#040530

#040530 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.9% C 0.084 H 270.4°. Best body text is #FFFFFF at 19.63:1 contrast (WCAG AA passes).

Color values

HEX	#040530
RGB	rgb(4, 5, 48)
HSL	hsl(239, 85%, 10%)
HSV	hsv(239, 92%, 19%)
CMYK	cmyk(91.7%, 89.6%, 0%, 81.2%)
CIE-LAB	lab(3.14, 12.59, -26.24)
CIE-LCH	lch(3.14, 29.10, 295.63°)
OKLab	oklab(15.94% 0.0006 -0.0838)
OKLCH	oklch(15.94% 0.084 270.4)
XYZ	xyz(0.6377, 0.3477, 2.8292)
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

#040530 #302F04

analogous

#041B30 #040530 #190430

triadic

#040530 #300405 #053004

tetradic

#040530 #30041B #302F04 #043019

square

#040530 #30041B #302F04 #043019

split-complementary

#040530 #301904 #1B3004

monochromatic

#02031C #02031C #040530 #090B68 #0D11A1

Accessibility & contrast

On white

19.63

#040530 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040530 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040530

19.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040530	#FFFFFF	#000000	##FFFFFF
##040530	1.00	19.63	1.07	19.63
#FFFFFF	19.63	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E31

Deuteranopia (green-blind)

#00092F

Tritanopia (blue-blind)

#00111A

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #040530;
/* rgb */ color: rgb(4, 5, 48);
/* oklch */ color: oklch(15.9% 0.084 270.4);

Tailwind

colors: {
  custom: {
    50: '#4a4869',
    500: '#040530',
    950: '#000000',
  },
}

SCSS

$custom: #040530;
$custom-light: #4a4869;
$custom-dark: #000000;

JSON

{
  "hex": "#040530",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 48
  },
  "hsl": {
    "h": 238.636,
    "s": 84.615,
    "l": 10.196
  },
  "oklch": {
    "l": 0.15938,
    "c": 0.08381,
    "h": 270.4
  },
  "luminance": 0.00348
}

Semantic roles & 50–950 ramp

primary

#040530

secondary

#72711D

accent

#F62DFB

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010006

muted

#77777A

Preview Lab

Preview with #040530

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

Preview Lab → · Contrast checker → · Palette generator →