#0F175C#0F175C

#0F175C is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.6% C 0.121 H 269.6°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#0F175C
RGB	rgb(15, 23, 92)
HSL	hsl(234, 72%, 21%)
HSV	hsv(234, 84%, 36%)
CMYK	cmyk(83.7%, 75%, 0%, 63.9%)
CIE-LAB	lab(12.52, 24.44, -41.90)
CIE-LCH	lch(12.52, 48.50, 300.26°)
OKLab	oklab(25.59% -0.0008 -0.1213)
OKLCH	oklch(25.59% 0.121 269.6)
XYZ	xyz(2.4345, 1.4868, 10.2818)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F175C #5C540F

analogous

#0F3D5C #0F175C #2D0F5C

triadic

#0F175C #5C0F17 #175C0F

tetradic

#0F175C #5C0F3D #5C540F #0F5C2D

square

#0F175C #5C0F3D #5C540F #0F5C2D

split-complementary

#0F175C #5C2D0F #3D5C0F

monochromatic

#04071A #060A27 #0F175C #182491 #2031C5

Accessibility & contrast

On white

16.19

#0F175C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#0F175C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F175C

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F175C	#FFFFFF	#000000	##FFFFFF
##0F175C	1.00	16.19	1.30	16.19
#FFFFFF	16.19	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245E

Deuteranopia (green-blind)

#001D5B

Tritanopia (blue-blind)

#002A37

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0f175c;
/* rgb */ color: rgb(15, 23, 92);
/* oklch */ color: oklch(25.6% 0.121 269.6);

Tailwind

colors: {
  custom: {
    50: '#5d548b',
    500: '#0f175c',
    950: '#000000',
  },
}

SCSS

$custom: #0f175c;
$custom-light: #5d548b;
$custom-dark: #000000;

JSON

{
  "hex": "#0f175c",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 92
  },
  "hsl": {
    "h": 233.766,
    "s": 71.963,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25588,
    "c": 0.12132,
    "h": 269.6
  },
  "luminance": 0.01487
}

Semantic roles & 50–950 ramp

primary

#0F175C

secondary

#958B31

accent

#DC39EF

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #0F175C

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

Preview Lab → · Contrast checker → · Palette generator →