#06183B#06183B

#06183B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.072 H 261.5°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#06183B
RGB	rgb(6, 24, 59)
HSL	hsl(220, 82%, 13%)
HSV	hsv(220, 90%, 23%)
CMYK	cmyk(89.8%, 59.3%, 0%, 76.9%)
CIE-LAB	lab(9.05, 8.14, -24.74)
CIE-LCH	lch(9.05, 26.05, 288.20°)
OKLab	oklab(21.87% -0.0106 -0.0712)
OKLCH	oklch(21.87% 0.072 261.5)
XYZ	xyz(1.1909, 1.0076, 4.2685)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#06183B #3B2906

analogous

#06323B #06183B #0F063B

triadic

#06183B #3B0618 #183B06

tetradic

#06183B #3B0632 #3B2906 #063B0F

square

#06183B #3B0632 #3B2906 #063B0F

split-complementary

#06183B #3B0F06 #323B06

monochromatic

#030B1C #030B1C #06183B #0C2F73 #1145AA

Accessibility & contrast

On white

17.48

#06183B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#06183B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #06183B

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##06183B	#FFFFFF	#000000	##FFFFFF
##06183B	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031C3C

Deuteranopia (green-blind)

#00173A

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #06183b;
/* rgb */ color: rgb(6, 24, 59);
/* oklch */ color: oklch(21.9% 0.072 261.5);

Tailwind

colors: {
  custom: {
    50: '#505471',
    500: '#06183b',
    950: '#000000',
  },
}

SCSS

$custom: #06183b;
$custom-light: #505471;
$custom-dark: #000000;

JSON

{
  "hex": "#06183b",
  "rgb": {
    "r": 6,
    "g": 24,
    "b": 59
  },
  "hsl": {
    "h": 219.623,
    "s": 81.538,
    "l": 12.745
  },
  "oklch": {
    "l": 0.21874,
    "c": 0.07203,
    "h": 261.5
  },
  "luminance": 0.01008
}

Semantic roles & 50–950 ramp

primary

#06183B

secondary

#7B5D22

accent

#B430F8

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #06183B

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

Preview Lab → · Contrast checker → · Palette generator →