#040C35#040C35

#040C35 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.2% C 0.081 H 267.0°. Best body text is #FFFFFF at 18.93:1 contrast (WCAG AA passes).

Color values

HEX	#040C35
RGB	rgb(4, 12, 53)
HSL	hsl(230, 86%, 11%)
HSV	hsv(230, 92%, 21%)
CMYK	cmyk(92.5%, 77.4%, 0%, 79.2%)
CIE-LAB	lab(4.93, 12.50, -27.08)
CIE-LCH	lch(4.93, 29.82, 294.79°)
OKLab	oklab(18.18% -0.0042 -0.0809)
OKLCH	oklch(18.18% 0.081 267)
XYZ	xyz(0.8239, 0.5457, 3.4294)
Luminance	0.0055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 2.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040C35 #352D04

analogous

#042435 #040C35 #140435

triadic

#040C35 #35040C #0C3504

tetradic

#040C35 #350424 #352D04 #043514

square

#040C35 #350424 #352D04 #043514

split-complementary

#040C35 #351404 #243504

monochromatic

#02061C #02061C #040C35 #08196E #0D26A7

Accessibility & contrast

On white

18.93

#040C35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#040C35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040C35

18.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040C35	#FFFFFF	#000000	##FFFFFF
##040C35	1.00	18.93	1.11	18.93
#FFFFFF	18.93	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001336

Deuteranopia (green-blind)

#000E34

Tritanopia (blue-blind)

#00171F

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #040c35;
/* rgb */ color: rgb(4, 12, 53);
/* oklch */ color: oklch(18.2% 0.081 267.0);

Tailwind

colors: {
  custom: {
    50: '#4d4b6d',
    500: '#040c35',
    950: '#000000',
  },
}

SCSS

$custom: #040c35;
$custom-light: #4d4b6d;
$custom-dark: #000000;

JSON

{
  "hex": "#040c35",
  "rgb": {
    "r": 4,
    "g": 12,
    "b": 53
  },
  "hsl": {
    "h": 230.204,
    "s": 85.965,
    "l": 11.176
  },
  "oklch": {
    "l": 0.18181,
    "c": 0.08105,
    "h": 267
  },
  "luminance": 0.00546
}

Semantic roles & 50–950 ramp

primary

#040C35

secondary

#77691E

accent

#DA2CFC

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020107

muted

#78777A

Preview Lab

Preview with #040C35

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

Preview Lab → · Contrast checker → · Palette generator →