#0F173D#0F173D

#0F173D is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.3% C 0.073 H 270.4°. Best body text is #FFFFFF at 17.35:1 contrast (WCAG AA passes).

Color values

HEX	#0F173D
RGB	rgb(15, 23, 61)
HSL	hsl(230, 61%, 15%)
HSV	hsv(230, 75%, 24%)
CMYK	cmyk(75.4%, 62.3%, 0%, 76.1%)
CIE-LAB	lab(9.41, 11.42, -25.57)
CIE-LCH	lch(9.41, 28.01, 294.07°)
OKLab	oklab(22.34% 0.0005 -0.0735)
OKLCH	oklch(22.34% 0.073 270.4)
XYZ	xyz(1.3454, 1.0511, 4.5460)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F173D #3D350F

analogous

#0F2E3D #0F173D #1E0F3D

triadic

#0F173D #3D0F17 #173D0F

tetradic

#0F173D #3D0F2E #3D350F #0F3D1E

square

#0F173D #3D0F2E #3D350F #0F3D1E

split-complementary

#0F173D #3D1E0F #2E3D0F

monochromatic

#060919 #060919 #0F173D #1B2A6E #273C9F

Accessibility & contrast

On white

17.35

#0F173D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0F173D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F173D

17.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F173D	#FFFFFF	#000000	##FFFFFF
##0F173D	1.00	17.35	1.21	17.35
#FFFFFF	17.35	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011C3E

Deuteranopia (green-blind)

#00183C

Tritanopia (blue-blind)

#002027

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0f173d;
/* rgb */ color: rgb(15, 23, 61);
/* oklch */ color: oklch(22.3% 0.073 270.4);

Tailwind

colors: {
  custom: {
    50: '#545373',
    500: '#0f173d',
    950: '#000000',
  },
}

SCSS

$custom: #0f173d;
$custom-light: #545373;
$custom-dark: #000000;

JSON

{
  "hex": "#0f173d",
  "rgb": {
    "r": 15,
    "g": 23,
    "b": 61
  },
  "hsl": {
    "h": 229.565,
    "s": 60.526,
    "l": 14.902
  },
  "oklch": {
    "l": 0.22339,
    "c": 0.07349,
    "h": 270.4
  },
  "luminance": 0.01051
}

Semantic roles & 50–950 ramp

primary

#0F173D

secondary

#776B30

accent

#C844E4

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0F173D

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

Preview Lab → · Contrast checker → · Palette generator →