#0A0743#0A0743

#0A0743 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.5% C 0.106 H 272.9°. Best body text is #FFFFFF at 18.68:1 contrast (WCAG AA passes).

Color values

HEX	#0A0743
RGB	rgb(10, 7, 67)
HSL	hsl(243, 81%, 15%)
HSV	hsv(243, 90%, 26%)
CMYK	cmyk(85.1%, 89.6%, 0%, 73.7%)
CIE-LAB	lab(5.61, 23.71, -36.06)
CIE-LCH	lch(5.61, 43.15, 303.33°)
OKLab	oklab(19.48% 0.0054 -0.1057)
OKLCH	oklch(19.48% 0.106 272.9)
XYZ	xyz(1.2139, 0.6216, 5.3651)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0743 #404307

analogous

#072243 #0A0743 #280743

triadic

#0A0743 #430A07 #07430A

tetradic

#0A0743 #430722 #404307 #074328

square

#0A0743 #430722 #404307 #074328

split-complementary

#0A0743 #432807 #224307

monochromatic

#04031C #04031C #0A0743 #120D7A #1B13B2

Accessibility & contrast

On white

18.68

#0A0743 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A0743 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0743

18.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0743	#FFFFFF	#000000	##FFFFFF
##0A0743	1.00	18.68	1.12	18.68
#FFFFFF	18.68	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001545

Deuteranopia (green-blind)

#000F42

Tritanopia (blue-blind)

#001A25

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a0743;
/* rgb */ color: rgb(10, 7, 67);
/* oklch */ color: oklch(19.5% 0.106 272.9);

Tailwind

colors: {
  custom: {
    50: '#554878',
    500: '#0a0743',
    950: '#000000',
  },
}

SCSS

$custom: #0a0743;
$custom-light: #554878;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0743",
  "rgb": {
    "r": 10,
    "g": 7,
    "b": 67
  },
  "hsl": {
    "h": 243,
    "s": 81.081,
    "l": 14.51
  },
  "oklch": {
    "l": 0.19479,
    "c": 0.10589,
    "h": 272.9
  },
  "luminance": 0.00622
}

Semantic roles & 50–950 ramp

primary

#0A0743

secondary

#7D8224

accent

#F730EE

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030009

muted

#78777B

Preview Lab

Preview with #0A0743

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

Preview Lab → · Contrast checker → · Palette generator →