#041839#041839

#041839 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.6% C 0.070 H 259.1°. Best body text is #FFFFFF at 17.58:1 contrast (WCAG AA passes).

Color values

HEX	#041839
RGB	rgb(4, 24, 57)
HSL	hsl(217, 87%, 12%)
HSV	hsv(217, 93%, 22%)
CMYK	cmyk(93%, 57.9%, 0%, 77.6%)
CIE-LAB	lab(8.78, 6.82, -23.76)
CIE-LCH	lch(8.78, 24.72, 286.00°)
OKLab	oklab(21.58% -0.0131 -0.0684)
OKLCH	oklch(21.58% 0.07 259.1)
XYZ	xyz(1.1150, 0.9744, 3.9994)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#041839 #392504

analogous

#043339 #041839 #0A0439

triadic

#041839 #390418 #183904

tetradic

#041839 #390433 #392504 #04390A

square

#041839 #390433 #392504 #04390A

split-complementary

#041839 #390A04 #333904

monochromatic

#020C1D #020C1D #041839 #083072 #0C48AB

Accessibility & contrast

On white

17.58

#041839 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#041839 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #041839

17.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##041839	#FFFFFF	#000000	##FFFFFF
##041839	1.00	17.58	1.19	17.58
#FFFFFF	17.58	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#051C3A

Deuteranopia (green-blind)

#001738

Tritanopia (blue-blind)

#002025

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #041839;
/* rgb */ color: rgb(4, 24, 57);
/* oklch */ color: oklch(21.6% 0.070 259.1);

Tailwind

colors: {
  custom: {
    50: '#4e5470',
    500: '#041839',
    950: '#000000',
  },
}

SCSS

$custom: #041839;
$custom-light: #4e5470;
$custom-dark: #000000;

JSON

{
  "hex": "#041839",
  "rgb": {
    "r": 4,
    "g": 24,
    "b": 57
  },
  "hsl": {
    "h": 217.358,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21576,
    "c": 0.06967,
    "h": 259.1
  },
  "luminance": 0.00974
}

Semantic roles & 50–950 ramp

primary

#041839

secondary

#7B581E

accent

#AE2BFD

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #041839

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

Preview Lab → · Contrast checker → · Palette generator →