#0A0738#0A0738

#0A0738 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.0% C 0.090 H 275.4°. Best body text is #FFFFFF at 19.08:1 contrast (WCAG AA passes).

Color values

HEX	#0A0738
RGB	rgb(10, 7, 56)
HSL	hsl(244, 78%, 12%)
HSV	hsv(244, 88%, 22%)
CMYK	cmyk(82.1%, 87.5%, 0%, 78%)
CIE-LAB	lab(4.53, 17.85, -29.89)
CIE-LCH	lch(4.53, 34.82, 300.84°)
OKLab	oklab(18.02% 0.0084 -0.0898)
OKLCH	oklch(18.02% 0.09 275.4)
XYZ	xyz(0.9147, 0.5019, 3.7893)
Luminance	0.0050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0738 #353807

analogous

#071D38 #0A0738 #220738

triadic

#0A0738 #380A07 #07380A

tetradic

#0A0738 #38071D #353807 #073822

square

#0A0738 #38071D #353807 #073822

split-complementary

#0A0738 #382207 #1D3807

monochromatic

#05031B #05031B #0A0738 #140E6E #1D15A5

Accessibility & contrast

On white

19.08

#0A0738 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0A0738 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0738

19.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0738	#FFFFFF	#000000	##FFFFFF
##0A0738	1.00	19.08	1.10	19.08
#FFFFFF	19.08	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001239

Deuteranopia (green-blind)

#000D37

Tritanopia (blue-blind)

#00151F

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #0a0738;
/* rgb */ color: rgb(10, 7, 56);
/* oklch */ color: oklch(18.0% 0.090 275.4);

Tailwind

colors: {
  custom: {
    50: '#51496f',
    500: '#0a0738',
    950: '#000000',
  },
}

SCSS

$custom: #0a0738;
$custom-light: #51496f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0738",
  "rgb": {
    "r": 10,
    "g": 7,
    "b": 56
  },
  "hsl": {
    "h": 243.673,
    "s": 77.778,
    "l": 12.353
  },
  "oklch": {
    "l": 0.18021,
    "c": 0.09019,
    "h": 275.4
  },
  "luminance": 0.00502
}

Semantic roles & 50–950 ramp

primary

#0A0738

secondary

#727823

accent

#F434E8

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0738

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

Preview Lab → · Contrast checker → · Palette generator →