#0A032F#0A032F

#0A032F is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.9% C 0.084 H 280.4°. Best body text is #FFFFFF at 19.68:1 contrast (WCAG AA passes).

Color values

HEX	#0A032F
RGB	rgb(10, 3, 47)
HSL	hsl(250, 88%, 10%)
HSV	hsv(250, 94%, 18%)
CMYK	cmyk(78.7%, 93.6%, 0%, 81.6%)
CIE-LAB	lab(3.02, 14.44, -25.65)
CIE-LCH	lch(3.02, 29.44, 299.37°)
OKLab	oklab(15.92% 0.0152 -0.0824)
OKLCH	oklch(15.92% 0.084 280.4)
XYZ	xyz(0.6707, 0.3348, 2.7181)
Luminance	0.0034 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A032F #282F03

analogous

#03122F #0A032F #20032F

triadic

#0A032F #2F0A03 #032F0A

tetradic

#0A032F #2F0312 #282F03 #032F20

square

#0A032F #2F0312 #282F03 #032F20

split-complementary

#0A032F #2F2003 #122F03

monochromatic

#06021D #06021D #0A032F #160769 #220AA2

Accessibility & contrast

On white

19.68

#0A032F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#0A032F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A032F

19.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A032F	#FFFFFF	#000000	##FFFFFF
##0A032F	1.00	19.68	1.07	19.68
#FFFFFF	19.68	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D30

Deuteranopia (green-blind)

#00092E

Tritanopia (blue-blind)

#000F18

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #0a032f;
/* rgb */ color: rgb(10, 3, 47);
/* oklch */ color: oklch(15.9% 0.084 280.4);

Tailwind

colors: {
  custom: {
    50: '#4d4768',
    500: '#0a032f',
    950: '#000000',
  },
}

SCSS

$custom: #0a032f;
$custom-light: #4d4768;
$custom-dark: #000000;

JSON

{
  "hex": "#0a032f",
  "rgb": {
    "r": 10,
    "g": 3,
    "b": 47
  },
  "hsl": {
    "h": 249.545,
    "s": 88,
    "l": 9.804
  },
  "oklch": {
    "l": 0.15916,
    "c": 0.08373,
    "h": 280.4
  },
  "luminance": 0.00335
}

Semantic roles & 50–950 ramp

primary

#0A032F

secondary

#65731B

accent

#FE2ADC

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020006

muted

#78777A

Preview Lab

Preview with #0A032F

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

Preview Lab → · Contrast checker → · Palette generator →