#0A073F#0A073F

#0A073F is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.9% C 0.100 H 273.7°. Best body text is #FFFFFF at 18.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A073F
RGB	rgb(10, 7, 63)
HSL	hsl(243, 80%, 14%)
HSV	hsv(243, 89%, 25%)
CMYK	cmyk(84.1%, 88.9%, 0%, 75.3%)
CIE-LAB	lab(5.20, 21.67, -33.88)
CIE-LCH	lch(5.20, 40.22, 302.60°)
OKLab	oklab(18.94% 0.0065 -0.1001)
OKLCH	oklch(18.94% 0.1 273.7)
XYZ	xyz(1.0981, 0.5753, 4.7548)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.78

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A073F #3C3F07

analogous

#07203F #0A073F #26073F

triadic

#0A073F #3F0A07 #073F0A

tetradic

#0A073F #3F0720 #3C3F07 #073F26

square

#0A073F #3F0720 #3C3F07 #073F26

split-complementary

#0A073F #3F2607 #203F07

monochromatic

#04031C #04031C #0A073F #130D76 #1B13AD

Accessibility & contrast

On white

18.83

#0A073F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A073F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A073F

18.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A073F	#FFFFFF	#000000	##FFFFFF
##0A073F	1.00	18.83	1.12	18.83
#FFFFFF	18.83	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001441

Deuteranopia (green-blind)

#000F3E

Tritanopia (blue-blind)

#001823

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #0a073f;
/* rgb */ color: rgb(10, 7, 63);
/* oklch */ color: oklch(18.9% 0.100 273.7);

Tailwind

colors: {
  custom: {
    50: '#534975',
    500: '#0a073f',
    950: '#000000',
  },
}

SCSS

$custom: #0a073f;
$custom-light: #534975;
$custom-dark: #000000;

JSON

{
  "hex": "#0a073f",
  "rgb": {
    "r": 10,
    "g": 7,
    "b": 63
  },
  "hsl": {
    "h": 243.214,
    "s": 80,
    "l": 13.725
  },
  "oklch": {
    "l": 0.18941,
    "c": 0.10029,
    "h": 273.7
  },
  "luminance": 0.00575
}

Semantic roles & 50–950 ramp

primary

#0A073F

secondary

#797E24

accent

#F631EC

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0A073F

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

Preview Lab → · Contrast checker → · Palette generator →