#0F175A#0F175A

#0F175A is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.118 H 269.7°. Best body text is #FFFFFF at 16.27:1 contrast (WCAG AA passes).

Color values

HEX	#0F175A
RGB	rgb(15, 23, 90)
HSL	hsl(234, 71%, 21%)
HSV	hsv(234, 83%, 35%)
CMYK	cmyk(83.3%, 74.4%, 0%, 64.7%)
CIE-LAB	lab(12.30, 23.64, -40.92)
CIE-LCH	lch(12.30, 47.25, 300.01°)
OKLab	oklab(25.36% -0.0005 -0.1185)
OKLCH	oklch(25.36% 0.118 269.7)
XYZ	xyz(2.3482, 1.4523, 9.8274)
Luminance	0.0145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F175A #5A520F

analogous

#0F3C5A #0F175A #2C0F5A

triadic

#0F175A #5A0F17 #175A0F

tetradic

#0F175A #5A0F3C #5A520F #0F5A2C

square

#0F175A #5A0F3C #5A520F #0F5A2C

split-complementary

#0F175A #5A2C0F #3C5A0F

monochromatic

#04071A #060A26 #0F175A #18248E #2032C3

Accessibility & contrast

On white

16.27

#0F175A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0F175A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F175A

16.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F175A	#FFFFFF	#000000	##FFFFFF
##0F175A	1.00	16.27	1.29	16.27
#FFFFFF	16.27	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245C

Deuteranopia (green-blind)

#001D59

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0f175a;
/* rgb */ color: rgb(15, 23, 90);
/* oklch */ color: oklch(25.4% 0.118 269.7);

Tailwind

colors: {
  custom: {
    50: '#5c5489',
    500: '#0f175a',
    950: '#000000',
  },
}

SCSS

$custom: #0f175a;
$custom-light: #5c5489;
$custom-dark: #000000;

JSON

{
  "hex": "#0f175a",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 90
  },
  "hsl": {
    "h": 233.6,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.2536,
    "c": 0.11847,
    "h": 269.7
  },
  "luminance": 0.01453
}

Semantic roles & 50–950 ramp

primary

#0F175A

secondary

#948931

accent

#DB3AEE

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #0F175A

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

Preview Lab → · Contrast checker → · Palette generator →