#040347#040347

#040347 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.9% C 0.118 H 267.9°. Best body text is #FFFFFF at 18.93:1 contrast (WCAG AA passes).

Color values

HEX	#040347
RGB	rgb(4, 3, 71)
HSL	hsl(241, 92%, 15%)
HSV	hsv(241, 96%, 28%)
CMYK	cmyk(94.4%, 95.8%, 0%, 72.2%)
CIE-LAB	lab(4.93, 26.84, -40.03)
CIE-LCH	lch(4.93, 48.20, 303.85°)
OKLab	oklab(18.9% -0.0043 -0.1183)
OKLCH	oklch(18.9% 0.118 267.9)
XYZ	xyz(1.2196, 0.5457, 6.0011)
Luminance	0.0055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040347 #464703

analogous

#032447 #040347 #260347

triadic

#040347 #470403 #034704

tetradic

#040347 #470324 #464703 #034726

square

#040347 #470324 #464703 #034726

split-complementary

#040347 #472603 #244703

monochromatic

#02011D #02011D #040347 #070582 #0B08BC

Accessibility & contrast

On white

18.93

#040347 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#040347 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040347

18.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040347	#FFFFFF	#000000	##FFFFFF
##040347	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)

#001449

Deuteranopia (green-blind)

#000D46

Tritanopia (blue-blind)

#001A26

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #040347;
/* rgb */ color: rgb(4, 3, 71);
/* oklch */ color: oklch(18.9% 0.118 267.9);

Tailwind

colors: {
  custom: {
    50: '#54467b',
    500: '#040347',
    950: '#000000',
  },
}

SCSS

$custom: #040347;
$custom-light: #54467b;
$custom-dark: #000000;

JSON

{
  "hex": "#040347",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 71
  },
  "hsl": {
    "h": 240.882,
    "s": 91.892,
    "l": 14.51
  },
  "oklch": {
    "l": 0.18898,
    "c": 0.11839,
    "h": 267.9
  },
  "luminance": 0.00546
}

Semantic roles & 50–950 ramp

primary

#040347

secondary

#87881E

accent

#FF29FC

background

#F5F3F7

surface

#E9E5EE

border

#C5C1C9

text

#030009

muted

#78777B

Preview Lab

Preview with #040347

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

Preview Lab → · Contrast checker → · Palette generator →