#041738#041738

#041738 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.2% C 0.070 H 259.7°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#041738
RGB	rgb(4, 23, 56)
HSL	hsl(218, 87%, 12%)
HSV	hsv(218, 93%, 22%)
CMYK	cmyk(92.9%, 58.9%, 0%, 78%)
CIE-LAB	lab(8.34, 7.14, -23.75)
CIE-LCH	lch(8.34, 24.80, 286.73°)
OKLab	oklab(21.22% -0.0124 -0.0684)
OKLCH	oklch(21.22% 0.07 259.7)
XYZ	xyz(1.0700, 0.9240, 3.8626)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#041738 #382504

analogous

#043138 #041738 #0B0438

triadic

#041738 #380417 #173804

tetradic

#041738 #380431 #382504 #04380B

square

#041738 #380431 #382504 #04380B

split-complementary

#041738 #380B04 #313804

monochromatic

#020C1D #020C1D #041738 #082E71 #0C46AA

Accessibility & contrast

On white

17.72

#041738 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#041738 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #041738

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##041738	#FFFFFF	#000000	##FFFFFF
##041738	1.00	17.72	1.18	17.72
#FFFFFF	17.72	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041B39

Deuteranopia (green-blind)

#001637

Tritanopia (blue-blind)

#001F24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #041738;
/* rgb */ color: rgb(4, 23, 56);
/* oklch */ color: oklch(21.2% 0.070 259.7);

Tailwind

colors: {
  custom: {
    50: '#4e536f',
    500: '#041738',
    950: '#000000',
  },
}

SCSS

$custom: #041738;
$custom-light: #4e536f;
$custom-dark: #000000;

JSON

{
  "hex": "#041738",
  "rgb": {
    "r": 4,
    "g": 23,
    "b": 56
  },
  "hsl": {
    "h": 218.077,
    "s": 86.667,
    "l": 11.765
  },
  "oklch": {
    "l": 0.21216,
    "c": 0.06952,
    "h": 259.7
  },
  "luminance": 0.00924
}

Semantic roles & 50–950 ramp

primary

#041738

secondary

#7A581E

accent

#B02BFD

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #041738

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

Preview Lab → · Contrast checker → · Palette generator →