#0A1745#0A1745

#0A1745 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.088 H 266.9°. Best body text is #FFFFFF at 17.19:1 contrast (WCAG AA passes).

Color values

HEX	#0A1745
RGB	rgb(10, 23, 69)
HSL	hsl(227, 75%, 15%)
HSV	hsv(227, 86%, 27%)
CMYK	cmyk(85.5%, 66.7%, 0%, 72.9%)
CIE-LAB	lab(9.85, 14.14, -30.52)
CIE-LCH	lch(9.85, 33.64, 294.86°)
OKLab	oklab(22.82% -0.0047 -0.0882)
OKLCH	oklch(22.82% 0.088 266.9)
XYZ	xyz(1.5054, 1.1068, 5.7634)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1745 #45380A

analogous

#0A3445 #0A1745 #1A0A45

triadic

#0A1745 #450A17 #17450A

tetradic

#0A1745 #450A34 #45380A #0A451A

square

#0A1745 #450A34 #45380A #0A451A

split-complementary

#0A1745 #451A0A #34450A

monochromatic

#04091B #04091B #0A1745 #12297A #193BB0

Accessibility & contrast

On white

17.19

#0A1745 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0A1745 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1745

17.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1745	#FFFFFF	#000000	##FFFFFF
##0A1745	1.00	17.19	1.22	17.19
#FFFFFF	17.19	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E47

Deuteranopia (green-blind)

#001944

Tritanopia (blue-blind)

#00232B

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a1745;
/* rgb */ color: rgb(10, 23, 69);
/* oklch */ color: oklch(22.8% 0.088 266.9);

Tailwind

colors: {
  custom: {
    50: '#545379',
    500: '#0a1745',
    950: '#000000',
  },
}

SCSS

$custom: #0a1745;
$custom-light: #545379;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1745",
  "rgb": {
    "r": 10,
    "g": 23,
    "b": 69
  },
  "hsl": {
    "h": 226.78,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.2282,
    "c": 0.0883,
    "h": 266.9
  },
  "luminance": 0.01107
}

Semantic roles & 50–950 ramp

primary

#0A1745

secondary

#826E29

accent

#C836F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1745

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

Preview Lab → · Contrast checker → · Palette generator →