#0A1749#0A1749

#0A1749 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.2% C 0.095 H 267.2°. Best body text is #FFFFFF at 17.05:1 contrast (WCAG AA passes).

Color values

HEX	#0A1749
RGB	rgb(10, 23, 73)
HSL	hsl(228, 76%, 16%)
HSV	hsv(228, 86%, 29%)
CMYK	cmyk(86.3%, 68.5%, 0%, 71.4%)
CIE-LAB	lab(10.25, 15.91, -32.67)
CIE-LCH	lch(10.25, 36.34, 295.97°)
OKLab	oklab(23.24% -0.0047 -0.0945)
OKLCH	oklch(23.24% 0.095 267.2)
XYZ	xyz(1.6337, 1.1582, 6.4395)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1749 #493C0A

analogous

#0A3749 #0A1749 #1D0A49

triadic

#0A1749 #490A17 #17490A

tetradic

#0A1749 #490A37 #493C0A #0A491D

square

#0A1749 #490A37 #493C0A #0A491D

split-complementary

#0A1749 #491D0A #37490A

monochromatic

#04081B #04081B #0A1749 #11287F #1939B5

Accessibility & contrast

On white

17.05

#0A1749 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#0A1749 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1749

17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1749	#FFFFFF	#000000	##FFFFFF
##0A1749	1.00	17.05	1.23	17.05
#FFFFFF	17.05	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4B

Deuteranopia (green-blind)

#001948

Tritanopia (blue-blind)

#00242D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #0a1749;
/* rgb */ color: rgb(10, 23, 73);
/* oklch */ color: oklch(23.2% 0.095 267.2);

Tailwind

colors: {
  custom: {
    50: '#56537c',
    500: '#0a1749',
    950: '#000000',
  },
}

SCSS

$custom: #0a1749;
$custom-light: #56537c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1749",
  "rgb": {
    "r": 10,
    "g": 23,
    "b": 73
  },
  "hsl": {
    "h": 227.619,
    "s": 75.904,
    "l": 16.275
  },
  "oklch": {
    "l": 0.23235,
    "c": 0.09459,
    "h": 267.2
  },
  "luminance": 0.01158
}

Semantic roles & 50–950 ramp

primary

#0A1749

secondary

#867329

accent

#CB35F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1749

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

Preview Lab → · Contrast checker → · Palette generator →