#0A0F35#0A0F35

#0A0F35 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.3% C 0.074 H 271.8°. Best body text is #FFFFFF at 18.54:1 contrast (WCAG AA passes).

Color values

HEX	#0A0F35
RGB	rgb(10, 15, 53)
HSL	hsl(233, 68%, 12%)
HSV	hsv(233, 81%, 21%)
CMYK	cmyk(81.1%, 71.7%, 0%, 79.2%)
CIE-LAB	lab(5.99, 12.48, -25.35)
CIE-LCH	lch(5.99, 28.26, 296.21°)
OKLab	oklab(19.31% 0.0023 -0.0741)
OKLCH	oklch(19.31% 0.074 271.8)
XYZ	xyz(0.9384, 0.6631, 3.4460)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.44

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0F35 #35300A

analogous

#0A2535 #0A0F35 #1A0A35

triadic

#0A0F35 #350A0F #0F350A

tetradic

#0A0F35 #350A25 #35300A #0A351A

square

#0A0F35 #350A25 #35300A #0A351A

split-complementary

#0A0F35 #351A0A #25350A

monochromatic

#05071A #05071A #0A0F35 #141E68 #1D2C9C

Accessibility & contrast

On white

18.54

#0A0F35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0A0F35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0F35

18.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0F35	#FFFFFF	#000000	##FFFFFF
##0A0F35	1.00	18.54	1.13	18.54
#FFFFFF	18.54	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001536

Deuteranopia (green-blind)

#001134

Tritanopia (blue-blind)

#001920

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0a0f35;
/* rgb */ color: rgb(10, 15, 53);
/* oklch */ color: oklch(19.3% 0.074 271.8);

Tailwind

colors: {
  custom: {
    50: '#504d6d',
    500: '#0a0f35',
    950: '#000000',
  },
}

SCSS

$custom: #0a0f35;
$custom-light: #504d6d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0f35",
  "rgb": {
    "r": 10,
    "g": 15,
    "b": 53
  },
  "hsl": {
    "h": 233.023,
    "s": 68.254,
    "l": 12.353
  },
  "oklch": {
    "l": 0.19314,
    "c": 0.07413,
    "h": 271.8
  },
  "luminance": 0.00663
}

Semantic roles & 50–950 ramp

primary

#0A0F35

secondary

#726A28

accent

#D73DEB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020107

muted

#78777A

Preview Lab

Preview with #0A0F35

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

Preview Lab → · Contrast checker → · Palette generator →