#0F154B#0F154B

#0F154B is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.3% C 0.099 H 271.3°. Best body text is #FFFFFF at 17.08:1 contrast (WCAG AA passes).

Color values

HEX	#0F154B
RGB	rgb(15, 21, 75)
HSL	hsl(234, 67%, 18%)
HSV	hsv(234, 80%, 29%)
CMYK	cmyk(80%, 72%, 0%, 70.6%)
CIE-LAB	lab(10.15, 18.93, -34.20)
CIE-LCH	lch(10.15, 39.09, 298.96°)
OKLab	oklab(23.31% 0.0023 -0.0989)
OKLCH	oklch(23.31% 0.099 271.3)
XYZ	xyz(1.7347, 1.1457, 6.7850)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F154B #4B450F

analogous

#0F334B #0F154B #270F4B

triadic

#0F154B #4B0F15 #154B0F

tetradic

#0F154B #4B0F33 #4B450F #0F4B27

square

#0F154B #4B0F33 #4B450F #0F4B27

split-complementary

#0F154B #4B270F #334B0F

monochromatic

#05071A #05071A #0F154B #19237E #2332B1

Accessibility & contrast

On white

17.08

#0F154B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#0F154B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F154B

17.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F154B	#FFFFFF	#000000	##FFFFFF
##0F154B	1.00	17.08	1.23	17.08
#FFFFFF	17.08	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#00194A

Tritanopia (blue-blind)

#00232D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #0f154b;
/* rgb */ color: rgb(15, 21, 75);
/* oklch */ color: oklch(23.3% 0.099 271.3);

Tailwind

colors: {
  custom: {
    50: '#58527e',
    500: '#0f154b',
    950: '#000000',
  },
}

SCSS

$custom: #0f154b;
$custom-light: #58527e;
$custom-dark: #000000;

JSON

{
  "hex": "#0f154b",
  "rgb": {
    "r": 15,
    "g": 21,
    "b": 75
  },
  "hsl": {
    "h": 234,
    "s": 66.667,
    "l": 17.647
  },
  "oklch": {
    "l": 0.23305,
    "c": 0.09889,
    "h": 271.3
  },
  "luminance": 0.01146
}

Semantic roles & 50–950 ramp

primary

#0F154B

secondary

#857D30

accent

#D83EEA

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #0F154B

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

Preview Lab → · Contrast checker → · Palette generator →