#0A1043#0A1043

#0A1043 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.1% C 0.095 H 270.3°. Best body text is #FFFFFF at 17.98:1 contrast (WCAG AA passes).

Color values

HEX	#0A1043
RGB	rgb(10, 16, 67)
HSL	hsl(234, 74%, 15%)
HSV	hsv(234, 85%, 26%)
CMYK	cmyk(85.1%, 76.1%, 0%, 73.7%)
CIE-LAB	lab(7.59, 18.60, -32.82)
CIE-LCH	lch(7.59, 37.72, 299.55°)
OKLab	oklab(21.08% 0.0005 -0.095)
OKLCH	oklch(21.08% 0.095 270.3)
XYZ	xyz(1.3232, 0.8402, 5.4015)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.57

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1043 #433D0A

analogous

#0A2D43 #0A1043 #200A43

triadic

#0A1043 #430A10 #10430A

tetradic

#0A1043 #430A2D #433D0A #0A4320

square

#0A1043 #430A2D #433D0A #0A4320

split-complementary

#0A1043 #43200A #2D430A

monochromatic

#04061B #04061B #0A1043 #121D78 #1A29AE

Accessibility & contrast

On white

17.98

#0A1043 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0A1043 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1043

17.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1043	#FFFFFF	#000000	##FFFFFF
##0A1043	1.00	17.98	1.17	17.98
#FFFFFF	17.98	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001945

Deuteranopia (green-blind)

#001442

Tritanopia (blue-blind)

#001E27

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a1043;
/* rgb */ color: rgb(10, 16, 67);
/* oklch */ color: oklch(21.1% 0.095 270.3);

Tailwind

colors: {
  custom: {
    50: '#544e78',
    500: '#0a1043',
    950: '#000000',
  },
}

SCSS

$custom: #0a1043;
$custom-light: #544e78;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1043",
  "rgb": {
    "r": 10,
    "g": 16,
    "b": 67
  },
  "hsl": {
    "h": 233.684,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21084,
    "c": 0.09499,
    "h": 270.3
  },
  "luminance": 0.0084
}

Semantic roles & 50–950 ramp

primary

#0A1043

secondary

#807729

accent

#DD37F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A1043

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

Preview Lab → · Contrast checker → · Palette generator →