#0A0A48#0A0A48

#0A0A48 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.6% C 0.110 H 271.5°. Best body text is #FFFFFF at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A48
RGB	rgb(10, 10, 72)
HSL	hsl(240, 76%, 16%)
HSV	hsv(240, 86%, 28%)
CMYK	cmyk(86.1%, 86.1%, 0%, 71.8%)
CIE-LAB	lab(6.77, 24.51, -37.69)
CIE-LCH	lch(6.77, 44.96, 303.04°)
OKLab	oklab(20.64% 0.0028 -0.1095)
OKLCH	oklch(20.64% 0.11 271.5)
XYZ	xyz(1.4030, 0.7493, 6.2003)
Luminance	0.0075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A48 #48480A

analogous

#0A2948 #0A0A48 #290A48

triadic

#0A0A48 #480A0A #0A480A

tetradic

#0A0A48 #480A29 #48480A #0A4829

square

#0A0A48 #480A29 #48480A #0A4829

split-complementary

#0A0A48 #48290A #29480A

monochromatic

#04041B #04041B #0A0A48 #11117E #1919B3

Accessibility & contrast

On white

18.26

#0A0A48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A0A48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A48

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A48	#FFFFFF	#000000	##FFFFFF
##0A0A48	1.00	18.26	1.15	18.26
#FFFFFF	18.26	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00184A

Deuteranopia (green-blind)

#001247

Tritanopia (blue-blind)

#001D29

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a0a48;
/* rgb */ color: rgb(10, 10, 72);
/* oklch */ color: oklch(20.6% 0.110 271.5);

Tailwind

colors: {
  custom: {
    50: '#574a7c',
    500: '#0a0a48',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a48;
$custom-light: #574a7c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a48",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 72
  },
  "hsl": {
    "h": 240,
    "s": 75.61,
    "l": 16.078
  },
  "oklch": {
    "l": 0.20635,
    "c": 0.1095,
    "h": 271.5
  },
  "luminance": 0.00749
}

Semantic roles & 50–950 ramp

primary

#0A0A48

secondary

#858529

accent

#F236F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #0A0A48

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

Preview Lab → · Contrast checker → · Palette generator →