#0A0F4A#0A0F4A

#0A0F4A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.7% C 0.107 H 270.1°. Best body text is #FFFFFF at 17.79:1 contrast (WCAG AA passes).

Color values

HEX	#0A0F4A
RGB	rgb(10, 15, 74)
HSL	hsl(235, 76%, 16%)
HSV	hsv(235, 86%, 29%)
CMYK	cmyk(86.5%, 79.7%, 0%, 71%)
CIE-LAB	lab(8.13, 22.27, -36.84)
CIE-LCH	lch(8.13, 43.05, 301.16°)
OKLab	oklab(21.73% 0.0002 -0.1067)
OKLCH	oklch(21.73% 0.107 270.1)
XYZ	xyz(1.5316, 0.9004, 6.5703)
Luminance	0.0090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0F4A #4A450A

analogous

#0A2F4A #0A0F4A #250A4A

triadic

#0A0F4A #4A0A0F #0F4A0A

tetradic

#0A0F4A #4A0A2F #4A450A #0A4A25

square

#0A0F4A #4A0A2F #4A450A #0A4A25

split-complementary

#0A0F4A #4A250A #2F4A0A

monochromatic

#04051B #04051B #0A0F4A #111A80 #1925B6

Accessibility & contrast

On white

17.79

#0A0F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A0F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0F4A

17.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0F4A	#FFFFFF	#000000	##FFFFFF
##0A0F4A	1.00	17.79	1.18	17.79
#FFFFFF	17.79	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4C

Deuteranopia (green-blind)

#001549

Tritanopia (blue-blind)

#00202B

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a0f4a;
/* rgb */ color: rgb(10, 15, 74);
/* oklch */ color: oklch(21.7% 0.107 270.1);

Tailwind

colors: {
  custom: {
    50: '#574d7d',
    500: '#0a0f4a',
    950: '#000000',
  },
}

SCSS

$custom: #0a0f4a;
$custom-light: #574d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0f4a",
  "rgb": {
    "r": 10,
    "g": 15,
    "b": 74
  },
  "hsl": {
    "h": 235.313,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.21727,
    "c": 0.10669,
    "h": 270.1
  },
  "luminance": 0.00901
}

Semantic roles & 50–950 ramp

primary

#0A0F4A

secondary

#877F29

accent

#E435F3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #0A0F4A

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

Preview Lab → · Contrast checker → · Palette generator →