#040230#040230

#040230 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.1% C 0.089 H 271.5°. Best body text is #FFFFFF at 19.88:1 contrast (WCAG AA passes).

Color values

HEX	#040230
RGB	rgb(4, 2, 48)
HSL	hsl(243, 92%, 10%)
HSV	hsv(243, 96%, 19%)
CMYK	cmyk(91.7%, 95.8%, 0%, 81.2%)
CIE-LAB	lab(2.55, 13.78, -27.17)
CIE-LCH	lch(2.55, 30.47, 296.90°)
OKLab	oklab(15.12% 0.0024 -0.0893)
OKLCH	oklch(15.12% 0.089 271.5)
XYZ	xyz(0.6051, 0.2826, 2.8184)
Luminance	0.0028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040230 #2E3002

analogous

#021730 #040230 #1B0230

triadic

#040230 #300402 #023004

tetradic

#040230 #300217 #2E3002 #02301B

square

#040230 #300217 #2E3002 #02301B

split-complementary

#040230 #301B02 #173002

monochromatic

#02011D #02011D #040230 #09046B #0E07A6

Accessibility & contrast

On white

19.88

#040230 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040230 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040230

19.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040230	#FFFFFF	#000000	##FFFFFF
##040230	1.00	19.88	1.06	19.88
#FFFFFF	19.88	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C31

Deuteranopia (green-blind)

#00072F

Tritanopia (blue-blind)

#000F18

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #040230;
/* rgb */ color: rgb(4, 2, 48);
/* oklch */ color: oklch(15.1% 0.089 271.5);

Tailwind

colors: {
  custom: {
    50: '#4a4769',
    500: '#040230',
    950: '#000000',
  },
}

SCSS

$custom: #040230;
$custom-light: #4a4769;
$custom-dark: #000000;

JSON

{
  "hex": "#040230",
  "rgb": {
    "r": 4,
    "g": 2,
    "b": 48
  },
  "hsl": {
    "h": 242.609,
    "s": 92,
    "l": 9.804
  },
  "oklch": {
    "l": 0.15121,
    "c": 0.08936,
    "h": 271.5
  },
  "luminance": 0.00283
}

Semantic roles & 50–950 ramp

primary

#040230

secondary

#717519

accent

#FF29F6

background

#F4F3F6

surface

#E7E5EB

border

#C3C1C6

text

#010006

muted

#77777A

Preview Lab

Preview with #040230

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

Preview Lab → · Contrast checker → · Palette generator →