#041740#041740

#041740 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.083 H 262.1°. Best body text is #FFFFFF at 17.47:1 contrast (WCAG AA passes).

Color values

HEX	#041740
RGB	rgb(4, 23, 64)
HSL	hsl(221, 88%, 13%)
HSV	hsv(221, 94%, 25%)
CMYK	cmyk(93.8%, 64.1%, 0%, 74.9%)
CIE-LAB	lab(9.06, 10.97, -28.30)
CIE-LCH	lch(9.06, 30.35, 291.20°)
OKLab	oklab(21.99% -0.0114 -0.0818)
OKLCH	oklch(21.99% 0.083 262.1)
XYZ	xyz(1.2815, 1.0086, 4.9766)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#041740 #402D04

analogous

#043540 #041740 #0F0440

triadic

#041740 #400417 #174004

tetradic

#041740 #400435 #402D04 #04400F

square

#041740 #400435 #402D04 #04400F

split-complementary

#041740 #400F04 #354004

monochromatic

#020A1D #020A1D #041740 #082C7A #0B40B3

Accessibility & contrast

On white

17.47

#041740 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#041740 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #041740

17.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##041740	#FFFFFF	#000000	##FFFFFF
##041740	1.00	17.47	1.20	17.47
#FFFFFF	17.47	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D41

Deuteranopia (green-blind)

#00173F

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #041740;
/* rgb */ color: rgb(4, 23, 64);
/* oklch */ color: oklch(22.0% 0.083 262.1);

Tailwind

colors: {
  custom: {
    50: '#505375',
    500: '#041740',
    950: '#000000',
  },
}

SCSS

$custom: #041740;
$custom-light: #505375;
$custom-dark: #000000;

JSON

{
  "hex": "#041740",
  "rgb": {
    "r": 4,
    "g": 23,
    "b": 64
  },
  "hsl": {
    "h": 221,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.21992,
    "c": 0.08256,
    "h": 262.1
  },
  "luminance": 0.01009
}

Semantic roles & 50–950 ramp

primary

#041740

secondary

#81621F

accent

#BB29FE

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020208

muted

#78787B

Preview Lab

Preview with #041740

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

Preview Lab → · Contrast checker → · Palette generator →