#040338#040338

#040338 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.6% C 0.099 H 269.7°. Best body text is #FFFFFF at 19.53:1 contrast (WCAG AA passes).

Color values

HEX	#040338
RGB	rgb(4, 3, 56)
HSL	hsl(241, 90%, 12%)
HSV	hsv(241, 95%, 22%)
CMYK	cmyk(92.9%, 94.6%, 0%, 78%)
CIE-LAB	lab(3.40, 17.96, -31.75)
CIE-LCH	lch(3.40, 36.47, 299.50°)
OKLab	oklab(16.61% -0.0004 -0.0986)
OKLCH	oklch(16.61% 0.099 269.7)
XYZ	xyz(0.7962, 0.3764, 3.7713)
Luminance	0.0038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040338 #373803

analogous

#031D38 #040338 #1F0338

triadic

#040338 #380403 #033804

tetradic

#040338 #38031D #373803 #03381F

square

#040338 #38031D #373803 #03381F

split-complementary

#040338 #381F03 #1D3803

monochromatic

#02021D #02021D #040338 #080672 #0C09AC

Accessibility & contrast

On white

19.53

#040338 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040338 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040338

19.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040338	#FFFFFF	#000000	##FFFFFF
##040338	1.00	19.53	1.08	19.53
#FFFFFF	19.53	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F39

Deuteranopia (green-blind)

#000937

Tritanopia (blue-blind)

#00131E

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #040338;
/* rgb */ color: rgb(4, 3, 56);
/* oklch */ color: oklch(16.6% 0.099 269.7);

Tailwind

colors: {
  custom: {
    50: '#4d476f',
    500: '#040338',
    950: '#000000',
  },
}

SCSS

$custom: #040338;
$custom-light: #4d476f;
$custom-dark: #000000;

JSON

{
  "hex": "#040338",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 56
  },
  "hsl": {
    "h": 241.132,
    "s": 89.831,
    "l": 11.569
  },
  "oklch": {
    "l": 0.16606,
    "c": 0.09863,
    "h": 269.7
  },
  "luminance": 0.00376
}

Semantic roles & 50–950 ramp

primary

#040338

secondary

#797B1C

accent

#FF29FB

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020007

muted

#78777A

Preview Lab

Preview with #040338

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

Preview Lab → · Contrast checker → · Palette generator →