#0F183E#0F183E

#0F183E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.7% C 0.074 H 269.6°. Best body text is #FFFFFF at 17.20:1 contrast (WCAG AA passes).

Color values

HEX	#0F183E
RGB	rgb(15, 24, 62)
HSL	hsl(229, 61%, 15%)
HSV	hsv(229, 76%, 24%)
CMYK	cmyk(75.8%, 61.3%, 0%, 75.7%)
CIE-LAB	lab(9.82, 11.07, -25.62)
CIE-LCH	lch(9.82, 27.91, 293.37°)
OKLab	oklab(22.67% -0.0005 -0.0736)
OKLCH	oklch(22.67% 0.074 269.6)
XYZ	xyz(1.3928, 1.1025, 4.6959)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F183E #3E350F

analogous

#0F2F3E #0F183E #1E0F3E

triadic

#0F183E #3E0F18 #183E0F

tetradic

#0F183E #3E0F2F #3E350F #0F3E1E

square

#0F183E #3E0F2F #3E350F #0F3E1E

split-complementary

#0F183E #3E1E0F #2F3E0F

monochromatic

#060A19 #060A19 #0F183E #1B2B6F #273EA1

Accessibility & contrast

On white

17.20

#0F183E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0F183E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F183E

17.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F183E	#FFFFFF	#000000	##FFFFFF
##0F183E	1.00	17.20	1.22	17.20
#FFFFFF	17.20	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021D3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0f183e;
/* rgb */ color: rgb(15, 24, 62);
/* oklch */ color: oklch(22.7% 0.074 269.6);

Tailwind

colors: {
  custom: {
    50: '#545474',
    500: '#0f183e',
    950: '#000000',
  },
}

SCSS

$custom: #0f183e;
$custom-light: #545474;
$custom-dark: #000000;

JSON

{
  "hex": "#0f183e",
  "rgb": {
    "r": 15,
    "g": 24,
    "b": 62
  },
  "hsl": {
    "h": 228.511,
    "s": 61.039,
    "l": 15.098
  },
  "oklch": {
    "l": 0.22673,
    "c": 0.07363,
    "h": 269.6
  },
  "luminance": 0.01103
}

Semantic roles & 50–950 ramp

primary

#0F183E

secondary

#786B30

accent

#C544E4

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0F183E

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

Preview Lab → · Contrast checker → · Palette generator →