#040634#040634

#040634 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.7% C 0.088 H 269.5°. Best body text is #FFFFFF at 19.43:1 contrast (WCAG AA passes).

Color values

HEX	#040634
RGB	rgb(4, 6, 52)
HSL	hsl(238, 86%, 11%)
HSV	hsv(238, 92%, 20%)
CMYK	cmyk(92.3%, 88.5%, 0%, 79.6%)
CIE-LAB	lab(3.65, 14.37, -28.40)
CIE-LCH	lch(3.65, 31.83, 296.85°)
OKLab	oklab(16.74% -0.0008 -0.0881)
OKLCH	oklch(16.74% 0.088 269.5)
XYZ	xyz(0.7348, 0.4039, 3.2874)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040634 #343204

analogous

#041E34 #040634 #1A0434

triadic

#040634 #340406 #063404

tetradic

#040634 #34041E #343204 #04341A

square

#040634 #34041E #343204 #04341A

split-complementary

#040634 #341A04 #1E3404

monochromatic

#02031C #02031C #040634 #080D6D #0D13A6

Accessibility & contrast

On white

19.43

#040634 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040634 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040634

19.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040634	#FFFFFF	#000000	##FFFFFF
##040634	1.00	19.43	1.08	19.43
#FFFFFF	19.43	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001035

Deuteranopia (green-blind)

#000B33

Tritanopia (blue-blind)

#00131C

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040634;
/* rgb */ color: rgb(4, 6, 52);
/* oklch */ color: oklch(16.7% 0.088 269.5);

Tailwind

colors: {
  custom: {
    50: '#4c496c',
    500: '#040634',
    950: '#000000',
  },
}

SCSS

$custom: #040634;
$custom-light: #4c496c;
$custom-dark: #000000;

JSON

{
  "hex": "#040634",
  "rgb": {
    "r": 4,
    "g": 6,
    "b": 52
  },
  "hsl": {
    "h": 237.5,
    "s": 85.714,
    "l": 10.98
  },
  "oklch": {
    "l": 0.16737,
    "c": 0.08814,
    "h": 269.5
  },
  "luminance": 0.00404
}

Semantic roles & 50–950 ramp

primary

#040634

secondary

#76731E

accent

#F32CFC

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010007

muted

#77777A

Preview Lab

Preview with #040634

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

Preview Lab → · Contrast checker → · Palette generator →