#0A1143#0A1143

#0A1143 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.3% C 0.094 H 269.9°. Best body text is #FFFFFF at 17.88:1 contrast (WCAG AA passes).

Color values

HEX	#0A1143
RGB	rgb(10, 17, 67)
HSL	hsl(233, 74%, 15%)
HSV	hsv(233, 85%, 26%)
CMYK	cmyk(85.1%, 74.6%, 0%, 73.7%)
CIE-LAB	lab(7.86, 17.88, -32.37)
CIE-LCH	lch(7.86, 36.98, 298.92°)
OKLab	oklab(21.29% -0.0002 -0.0936)
OKLCH	oklch(21.29% 0.094 269.9)
XYZ	xyz(1.3384, 0.8705, 5.4066)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1143 #433C0A

analogous

#0A2D43 #0A1143 #200A43

triadic

#0A1143 #430A11 #11430A

tetradic

#0A1143 #430A2D #433C0A #0A4320

square

#0A1143 #430A2D #433C0A #0A4320

split-complementary

#0A1143 #43200A #2D430A

monochromatic

#04071B #04071B #0A1143 #121F78 #1A2CAE

Accessibility & contrast

On white

17.88

#0A1143 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0A1143 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1143

17.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1143	#FFFFFF	#000000	##FFFFFF
##0A1143	1.00	17.88	1.17	17.88
#FFFFFF	17.88	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A45

Deuteranopia (green-blind)

#001542

Tritanopia (blue-blind)

#001E28

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a1143;
/* rgb */ color: rgb(10, 17, 67);
/* oklch */ color: oklch(21.3% 0.094 269.9);

Tailwind

colors: {
  custom: {
    50: '#544e78',
    500: '#0a1143',
    950: '#000000',
  },
}

SCSS

$custom: #0a1143;
$custom-light: #544e78;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1143",
  "rgb": {
    "r": 10,
    "g": 17,
    "b": 67
  },
  "hsl": {
    "h": 232.632,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21289,
    "c": 0.09364,
    "h": 269.9
  },
  "luminance": 0.00871
}

Semantic roles & 50–950 ramp

primary

#0A1143

secondary

#807529

accent

#DA37F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A1143

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

Preview Lab → · Contrast checker → · Palette generator →