#06183A#06183A

#06183A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.8% C 0.070 H 261.2°. Best body text is #FFFFFF at 17.51:1 contrast (WCAG AA passes).

Color values

HEX	#06183A
RGB	rgb(6, 24, 58)
HSL	hsl(219, 81%, 13%)
HSV	hsv(219, 90%, 23%)
CMYK	cmyk(89.7%, 58.6%, 0%, 77.3%)
CIE-LAB	lab(8.97, 7.67, -24.17)
CIE-LCH	lch(8.97, 25.35, 287.60°)
OKLab	oklab(21.78% -0.0107 -0.0695)
OKLCH	oklch(21.78% 0.07 261.2)
XYZ	xyz(1.1652, 0.9973, 4.1333)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#06183A #3A2806

analogous

#06323A #06183A #0E063A

triadic

#06183A #3A0618 #183A06

tetradic

#06183A #3A0632 #3A2806 #063A0E

square

#06183A #3A0632 #3A2806 #063A0E

split-complementary

#06183A #3A0E06 #323A06

monochromatic

#030B1C #030B1C #06183A #0C2F71 #1146A9

Accessibility & contrast

On white

17.51

#06183A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#06183A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #06183A

17.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##06183A	#FFFFFF	#000000	##FFFFFF
##06183A	1.00	17.51	1.20	17.51
#FFFFFF	17.51	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041C3B

Deuteranopia (green-blind)

#001739

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #06183a;
/* rgb */ color: rgb(6, 24, 58);
/* oklch */ color: oklch(21.8% 0.070 261.2);

Tailwind

colors: {
  custom: {
    50: '#4f5470',
    500: '#06183a',
    950: '#000000',
  },
}

SCSS

$custom: #06183a;
$custom-light: #4f5470;
$custom-dark: #000000;

JSON

{
  "hex": "#06183a",
  "rgb": {
    "r": 6,
    "g": 24,
    "b": 58
  },
  "hsl": {
    "h": 219.231,
    "s": 81.25,
    "l": 12.549
  },
  "oklch": {
    "l": 0.21781,
    "c": 0.07038,
    "h": 261.2
  },
  "luminance": 0.00997
}

Semantic roles & 50–950 ramp

primary

#06183A

secondary

#7A5C22

accent

#B330F8

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #06183A

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

Preview Lab → · Contrast checker → · Palette generator →