#040940#040940

#040940 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.0% C 0.102 H 267.7°. Best body text is #FFFFFF at 18.78:1 contrast (WCAG AA passes).

Color values

HEX	#040940
RGB	rgb(4, 9, 64)
HSL	hsl(235, 88%, 13%)
HSV	hsv(235, 94%, 25%)
CMYK	cmyk(93.8%, 85.9%, 0%, 74.9%)
CIE-LAB	lab(5.34, 20.18, -34.38)
CIE-LCH	lch(5.34, 39.86, 300.41°)
OKLab	oklab(18.99% -0.0041 -0.1015)
OKLCH	oklch(18.99% 0.102 267.7)
XYZ	xyz(1.0729, 0.5912, 4.9071)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 2.18

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040940 #403B04

analogous

#042740 #040940 #1D0440

triadic

#040940 #400409 #094004

tetradic

#040940 #400427 #403B04 #04401D

square

#040940 #400427 #403B04 #04401D

split-complementary

#040940 #401D04 #274004

monochromatic

#02041D #02041D #040940 #08117A #0B19B3

Accessibility & contrast

On white

18.78

#040940 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#040940 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040940

18.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040940	#FFFFFF	#000000	##FFFFFF
##040940	1.00	18.78	1.12	18.78
#FFFFFF	18.78	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001542

Deuteranopia (green-blind)

#000F3F

Tritanopia (blue-blind)

#001924

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #040940;
/* rgb */ color: rgb(4, 9, 64);
/* oklch */ color: oklch(19.0% 0.102 267.7);

Tailwind

colors: {
  custom: {
    50: '#514976',
    500: '#040940',
    950: '#000000',
  },
}

SCSS

$custom: #040940;
$custom-light: #514976;
$custom-dark: #000000;

JSON

{
  "hex": "#040940",
  "rgb": {
    "r": 4,
    "g": 9,
    "b": 64
  },
  "hsl": {
    "h": 235,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.18989,
    "c": 0.10156,
    "h": 267.7
  },
  "luminance": 0.00591
}

Semantic roles & 50–950 ramp

primary

#040940

secondary

#81791F

accent

#ED29FE

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #040940

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

Preview Lab → · Contrast checker → · Palette generator →