#040741#040741

#040741 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.8% C 0.105 H 268.0°. Best body text is #FFFFFF at 18.89:1 contrast (WCAG AA passes).

Color values

HEX	#040741
RGB	rgb(4, 7, 65)
HSL	hsl(237, 88%, 14%)
HSV	hsv(237, 94%, 25%)
CMYK	cmyk(93.8%, 89.2%, 0%, 74.5%)
CIE-LAB	lab(5.05, 21.66, -35.57)
CIE-LCH	lch(5.05, 41.64, 301.35°)
OKLab	oklab(18.76% -0.0037 -0.1054)
OKLCH	oklch(18.76% 0.105 268)
XYZ	xyz(1.0799, 0.5593, 5.0510)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040741 #413E04

analogous

#042541 #040741 #1F0441

triadic

#040741 #410407 #074104

tetradic

#040741 #410425 #413E04 #04411F

square

#040741 #410425 #413E04 #04411F

split-complementary

#040741 #411F04 #254104

monochromatic

#02031D #02031D #040741 #080D7B #0B13B4

Accessibility & contrast

On white

18.89

#040741 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#040741 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040741

18.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040741	#FFFFFF	#000000	##FFFFFF
##040741	1.00	18.89	1.11	18.89
#FFFFFF	18.89	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001443

Deuteranopia (green-blind)

#000E40

Tritanopia (blue-blind)

#001924

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #040741;
/* rgb */ color: rgb(4, 7, 65);
/* oklch */ color: oklch(18.8% 0.105 268.0);

Tailwind

colors: {
  custom: {
    50: '#524876',
    500: '#040741',
    950: '#000000',
  },
}

SCSS

$custom: #040741;
$custom-light: #524876;
$custom-dark: #000000;

JSON

{
  "hex": "#040741",
  "rgb": {
    "r": 4,
    "g": 7,
    "b": 65
  },
  "hsl": {
    "h": 237.049,
    "s": 88.406,
    "l": 13.529
  },
  "oklch": {
    "l": 0.18758,
    "c": 0.10543,
    "h": 268
  },
  "luminance": 0.00559
}

Semantic roles & 50–950 ramp

primary

#040741

secondary

#827D1F

accent

#F429FF

background

#F5F4F7

surface

#E8E6ED

border

#C4C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #040741

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

Preview Lab → · Contrast checker → · Palette generator →