#0A1045#0A1045

#0A1045 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.3% C 0.098 H 270.2°. Best body text is #FFFFFF at 17.90:1 contrast (WCAG AA passes).

Color values

HEX	#0A1045
RGB	rgb(10, 16, 69)
HSL	hsl(234, 75%, 15%)
HSV	hsv(234, 86%, 27%)
CMYK	cmyk(85.5%, 76.8%, 0%, 72.9%)
CIE-LAB	lab(7.81, 19.48, -33.87)
CIE-LCH	lch(7.81, 39.07, 299.90°)
OKLab	oklab(21.32% 0.0003 -0.098)
OKLCH	oklch(21.32% 0.098 270.2)
XYZ	xyz(1.3843, 0.8646, 5.7230)
Luminance	0.0086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 1.50

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1045 #453F0A

analogous

#0A2D45 #0A1045 #210A45

triadic

#0A1045 #450A10 #10450A

tetradic

#0A1045 #450A2D #453F0A #0A4521

square

#0A1045 #450A2D #453F0A #0A4521

split-complementary

#0A1045 #45210A #2D450A

monochromatic

#04061B #04061B #0A1045 #121C7A #1929B0

Accessibility & contrast

On white

17.90

#0A1045 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0A1045 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1045

17.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1045	#FFFFFF	#000000	##FFFFFF
##0A1045	1.00	17.90	1.17	17.90
#FFFFFF	17.90	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A47

Deuteranopia (green-blind)

#001444

Tritanopia (blue-blind)

#001F28

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a1045;
/* rgb */ color: rgb(10, 16, 69);
/* oklch */ color: oklch(21.3% 0.098 270.2);

Tailwind

colors: {
  custom: {
    50: '#554e79',
    500: '#0a1045',
    950: '#000000',
  },
}

SCSS

$custom: #0a1045;
$custom-light: #554e79;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1045",
  "rgb": {
    "r": 10,
    "g": 16,
    "b": 69
  },
  "hsl": {
    "h": 233.898,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.21317,
    "c": 0.09803,
    "h": 270.2
  },
  "luminance": 0.00865
}

Semantic roles & 50–950 ramp

primary

#0A1045

secondary

#827929

accent

#DE36F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A1045

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

Preview Lab → · Contrast checker → · Palette generator →