#0A1242#0A1242

#0A1242 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.4% C 0.091 H 269.5°. Best body text is #FFFFFF at 17.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A1242
RGB	rgb(10, 18, 66)
HSL	hsl(231, 74%, 15%)
HSV	hsv(231, 85%, 26%)
CMYK	cmyk(84.8%, 72.7%, 0%, 74.1%)
CIE-LAB	lab(8.04, 16.69, -31.37)
CIE-LCH	lch(8.04, 35.53, 298.02°)
OKLab	oklab(21.39% -0.0008 -0.0907)
OKLCH	oklch(21.39% 0.091 269.5)
XYZ	xyz(1.3245, 0.8903, 5.2552)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1242 #423A0A

analogous

#0A2E42 #0A1242 #1E0A42

triadic

#0A1242 #420A12 #12420A

tetradic

#0A1242 #420A2E #423A0A #0A421E

square

#0A1242 #420A2E #423A0A #0A421E

split-complementary

#0A1242 #421E0A #2E420A

monochromatic

#04071B #04071B #0A1242 #122077 #1A2FAC

Accessibility & contrast

On white

17.83

#0A1242 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A1242 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1242

17.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1242	#FFFFFF	#000000	##FFFFFF
##0A1242	1.00	17.83	1.18	17.83
#FFFFFF	17.83	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A44

Deuteranopia (green-blind)

#001541

Tritanopia (blue-blind)

#001F28

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a1242;
/* rgb */ color: rgb(10, 18, 66);
/* oklch */ color: oklch(21.4% 0.091 269.5);

Tailwind

colors: {
  custom: {
    50: '#544f77',
    500: '#0a1242',
    950: '#000000',
  },
}

SCSS

$custom: #0a1242;
$custom-light: #544f77;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1242",
  "rgb": {
    "r": 10,
    "g": 18,
    "b": 66
  },
  "hsl": {
    "h": 231.429,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.21387,
    "c": 0.0907,
    "h": 269.5
  },
  "luminance": 0.0089
}

Semantic roles & 50–950 ramp

primary

#0A1242

secondary

#7F7329

accent

#D637F0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1242

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

Preview Lab → · Contrast checker → · Palette generator →