#0A192E#0A192E

#0A192E is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.3% C 0.047 H 257.1°. Best body text is #FFFFFF at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#0A192E
RGB	rgb(10, 25, 46)
HSL	hsl(215, 64%, 11%)
HSV	hsv(215, 78%, 18%)
CMYK	cmyk(78.3%, 45.7%, 0%, 82%)
CIE-LAB	lab(8.63, 2.14, -15.99)
CIE-LCH	lch(8.63, 16.13, 277.63°)
OKLab	oklab(21.28% -0.0104 -0.0454)
OKLCH	oklch(21.28% 0.047 257.1)
XYZ	xyz(0.9658, 0.9570, 2.7181)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A192E #2E1F0A

analogous

#0A2B2E #0A192E #0D0A2E

triadic

#0A192E #2E0A19 #192E0A

tetradic

#0A192E #2E0A2B #2E1F0A #0A2E0D

square

#0A192E #2E0A2B #2E1F0A #0A2E0D

split-complementary

#0A192E #2E0D0A #2B2E0A

monochromatic

#050E19 #050E19 #0A192E #153460 #205093

Accessibility & contrast

On white

17.63

#0A192E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#0A192E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A192E

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A192E	#FFFFFF	#000000	##FFFFFF
##0A192E	1.00	17.63	1.19	17.63
#FFFFFF	17.63	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101B2F

Deuteranopia (green-blind)

#0B172E

Tritanopia (blue-blind)

#001E21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0a192e;
/* rgb */ color: rgb(10, 25, 46);
/* oklch */ color: oklch(21.3% 0.047 257.1);

Tailwind

colors: {
  custom: {
    50: '#4d5567',
    500: '#0a192e',
    950: '#000000',
  },
}

SCSS

$custom: #0a192e;
$custom-light: #4d5567;
$custom-dark: #000000;

JSON

{
  "hex": "#0a192e",
  "rgb": {
    "r": 10,
    "g": 25,
    "b": 46
  },
  "hsl": {
    "h": 215,
    "s": 64.286,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21283,
    "c": 0.04659,
    "h": 257.1
  },
  "luminance": 0.00957
}

Semantic roles & 50–950 ramp

primary

#0A192E

secondary

#6B4F29

accent

#A241E7

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010306

muted

#77787A

Preview Lab

Preview with #0A192E

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

Preview Lab → · Contrast checker → · Palette generator →