#0F175E#0F175E

#0F175E is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.8% C 0.124 H 269.5°. Best body text is #FFFFFF at 16.10:1 contrast (WCAG AA passes).

Color values

HEX	#0F175E
RGB	rgb(15, 23, 94)
HSL	hsl(234, 72%, 21%)
HSV	hsv(234, 84%, 37%)
CMYK	cmyk(84%, 75.5%, 0%, 63.1%)
CIE-LAB	lab(12.75, 25.24, -42.87)
CIE-LCH	lch(12.75, 49.74, 300.49°)
OKLab	oklab(25.82% -0.001 -0.1241)
OKLCH	oklch(25.82% 0.124 269.5)
XYZ	xyz(2.5231, 1.5222, 10.7483)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F175E #5E560F

analogous

#0F3F5E #0F175E #2F0F5E

triadic

#0F175E #5E0F17 #175E0F

tetradic

#0F175E #5E0F3F #5E560F #0F5E2F

square

#0F175E #5E0F3F #5E560F #0F5E2F

split-complementary

#0F175E #5E2F0F #3F5E0F

monochromatic

#04061A #070A29 #0F175E #172493 #2031C8

Accessibility & contrast

On white

16.10

#0F175E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0F175E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F175E

16.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F175E	#FFFFFF	#000000	##FFFFFF
##0F175E	1.00	16.10	1.30	16.10
#FFFFFF	16.10	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002560

Deuteranopia (green-blind)

#001D5D

Tritanopia (blue-blind)

#002B38

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0f175e;
/* rgb */ color: rgb(15, 23, 94);
/* oklch */ color: oklch(25.8% 0.124 269.5);

Tailwind

colors: {
  custom: {
    50: '#5e548d',
    500: '#0f175e',
    950: '#000000',
  },
}

SCSS

$custom: #0f175e;
$custom-light: #5e548d;
$custom-dark: #000000;

JSON

{
  "hex": "#0f175e",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 94
  },
  "hsl": {
    "h": 233.924,
    "s": 72.477,
    "l": 21.373
  },
  "oklch": {
    "l": 0.25818,
    "c": 0.12415,
    "h": 269.5
  },
  "luminance": 0.01523
}

Semantic roles & 50–950 ramp

primary

#0F175E

secondary

#978D31

accent

#DD39EF

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #0F175E

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

Preview Lab → · Contrast checker → · Palette generator →