#0F1243#0F1243

#0F1243 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.8% C 0.091 H 273.4°. Best body text is #FFFFFF at 17.68:1 contrast (WCAG AA passes).

Color values

HEX	#0F1243
RGB	rgb(15, 18, 67)
HSL	hsl(237, 63%, 16%)
HSV	hsv(237, 78%, 26%)
CMYK	cmyk(77.6%, 73.1%, 0%, 73.7%)
CIE-LAB	lab(8.48, 17.83, -31.35)
CIE-LCH	lch(8.48, 36.06, 299.62°)
OKLab	oklab(21.82% 0.0054 -0.0905)
OKLCH	oklch(21.82% 0.091 273.4)
XYZ	xyz(1.4261, 0.9393, 5.4152)
Luminance	0.0094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F1243 #43400F

analogous

#0F2C43 #0F1243 #260F43

triadic

#0F1243 #430F12 #12430F

tetradic

#0F1243 #430F2C #43400F #0F4326

square

#0F1243 #430F2C #43400F #0F4326

split-complementary

#0F1243 #43260F #2C430F

monochromatic

#060719 #060719 #0F1243 #1A1F75 #252DA7

Accessibility & contrast

On white

17.68

#0F1243 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#0F1243 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F1243

17.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F1243	#FFFFFF	#000000	##FFFFFF
##0F1243	1.00	17.68	1.19	17.68
#FFFFFF	17.68	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B45

Deuteranopia (green-blind)

#001642

Tritanopia (blue-blind)

#001F28

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0f1243;
/* rgb */ color: rgb(15, 18, 67);
/* oklch */ color: oklch(21.8% 0.091 273.4);

Tailwind

colors: {
  custom: {
    50: '#564f78',
    500: '#0f1243',
    950: '#000000',
  },
}

SCSS

$custom: #0f1243;
$custom-light: #564f78;
$custom-dark: #000000;

JSON

{
  "hex": "#0f1243",
  "rgb": {
    "r": 15,
    "g": 18,
    "b": 67
  },
  "hsl": {
    "h": 236.538,
    "s": 63.415,
    "l": 16.078
  },
  "oklch": {
    "l": 0.21824,
    "c": 0.09069,
    "h": 273.4
  },
  "luminance": 0.00939
}

Semantic roles & 50–950 ramp

primary

#0F1243

secondary

#7D7930

accent

#DD41E6

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0F1243

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

Preview Lab → · Contrast checker → · Palette generator →