#0F1B5A#0F1B5A

#0F1B5A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.113 H 268.5°. Best body text is #FFFFFF at 15.85:1 contrast (WCAG AA passes).

Color values

HEX	#0F1B5A
RGB	rgb(15, 27, 90)
HSL	hsl(230, 71%, 21%)
HSV	hsv(230, 83%, 35%)
CMYK	cmyk(83.3%, 70%, 0%, 64.7%)
CIE-LAB	lab(13.37, 20.77, -39.16)
CIE-LCH	lch(13.37, 44.33, 297.94°)
OKLab	oklab(26.14% -0.0029 -0.1133)
OKLCH	oklch(26.14% 0.113 268.5)
XYZ	xyz(2.4338, 1.6233, 9.8559)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F1B5A #5A4E0F

analogous

#0F405A #0F1B5A #280F5A

triadic

#0F1B5A #5A0F1B #1B5A0F

tetradic

#0F1B5A #5A0F40 #5A4E0F #0F5A28

square

#0F1B5A #5A0F40 #5A4E0F #0F5A28

split-complementary

#0F1B5A #5A280F #405A0F

monochromatic

#04081A #060B26 #0F1B5A #182B8E #203AC3

Accessibility & contrast

On white

15.85

#0F1B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#0F1B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F1B5A

15.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F1B5A	#FFFFFF	#000000	##FFFFFF
##0F1B5A	1.00	15.85	1.32	15.85
#FFFFFF	15.85	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265C

Deuteranopia (green-blind)

#001F59

Tritanopia (blue-blind)

#002C37

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0f1b5a;
/* rgb */ color: rgb(15, 27, 90);
/* oklch */ color: oklch(26.1% 0.113 268.5);

Tailwind

colors: {
  custom: {
    50: '#5c5789',
    500: '#0f1b5a',
    950: '#000000',
  },
}

SCSS

$custom: #0f1b5a;
$custom-light: #5c5789;
$custom-dark: #000000;

JSON

{
  "hex": "#0f1b5a",
  "rgb": {
    "r": 15,
    "g": 27,
    "b": 90
  },
  "hsl": {
    "h": 230.4,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.2614,
    "c": 0.11335,
    "h": 268.5
  },
  "luminance": 0.01624
}

Semantic roles & 50–950 ramp

primary

#0F1B5A

secondary

#948431

accent

#D13AEE

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #0F1B5A

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

Preview Lab → · Contrast checker → · Palette generator →