#040D35#040D35

#040D35 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.4% C 0.080 H 266.5°. Best body text is #FFFFFF at 18.85:1 contrast (WCAG AA passes).

Color values

HEX	#040D35
RGB	rgb(4, 13, 53)
HSL	hsl(229, 86%, 11%)
HSV	hsv(229, 92%, 21%)
CMYK	cmyk(92.5%, 75.5%, 0%, 79.2%)
CIE-LAB	lab(5.15, 12.05, -26.71)
CIE-LCH	lch(5.15, 29.30, 294.27°)
OKLab	oklab(18.41% -0.0049 -0.0795)
OKLCH	oklch(18.41% 0.08 266.5)
XYZ	xyz(0.8364, 0.5706, 3.4335)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 2.93

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040D35 #352C04

analogous

#042535 #040D35 #130435

triadic

#040D35 #35040D #0D3504

tetradic

#040D35 #350425 #352C04 #043513

square

#040D35 #350425 #352C04 #043513

split-complementary

#040D35 #351304 #253504

monochromatic

#02071C #02071C #040D35 #081B6E #0D29A7

Accessibility & contrast

On white

18.85

#040D35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#040D35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040D35

18.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040D35	#FFFFFF	#000000	##FFFFFF
##040D35	1.00	18.85	1.11	18.85
#FFFFFF	18.85	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001436

Deuteranopia (green-blind)

#000F34

Tritanopia (blue-blind)

#00181F

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #040d35;
/* rgb */ color: rgb(4, 13, 53);
/* oklch */ color: oklch(18.4% 0.080 266.5);

Tailwind

colors: {
  custom: {
    50: '#4d4c6d',
    500: '#040d35',
    950: '#000000',
  },
}

SCSS

$custom: #040d35;
$custom-light: #4d4c6d;
$custom-dark: #000000;

JSON

{
  "hex": "#040d35",
  "rgb": {
    "r": 4,
    "g": 13,
    "b": 53
  },
  "hsl": {
    "h": 228.98,
    "s": 85.965,
    "l": 11.176
  },
  "oklch": {
    "l": 0.18406,
    "c": 0.07961,
    "h": 266.5
  },
  "luminance": 0.00571
}

Semantic roles & 50–950 ramp

primary

#040D35

secondary

#77671E

accent

#D62CFC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020107

muted

#78777A

Preview Lab

Preview with #040D35

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

Preview Lab → · Contrast checker → · Palette generator →