#0A154A#0A154A

#0A154A is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.9% C 0.099 H 268.1°. Best body text is #FFFFFF at 17.23:1 contrast (WCAG AA passes).

Color values

HEX	#0A154A
RGB	rgb(10, 21, 74)
HSL	hsl(230, 76%, 16%)
HSV	hsv(230, 86%, 29%)
CMYK	cmyk(86.5%, 71.6%, 0%, 71%)
CIE-LAB	lab(9.76, 17.88, -34.16)
CIE-LCH	lch(9.76, 38.56, 297.62°)
OKLab	oklab(22.91% -0.0033 -0.0989)
OKLCH	oklch(22.91% 0.099 268.1)
XYZ	xyz(1.6289, 1.0951, 6.6028)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A154A #4A3F0A

analogous

#0A354A #0A154A #1F0A4A

triadic

#0A154A #4A0A15 #154A0A

tetradic

#0A154A #4A0A35 #4A3F0A #0A4A1F

square

#0A154A #4A0A35 #4A3F0A #0A4A1F

split-complementary

#0A154A #4A1F0A #354A0A

monochromatic

#04081B #04081B #0A154A #112480 #1934B6

Accessibility & contrast

On white

17.23

#0A154A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0A154A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A154A

17.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A154A	#FFFFFF	#000000	##FFFFFF
##0A154A	1.00	17.23	1.22	17.23
#FFFFFF	17.23	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E4C

Deuteranopia (green-blind)

#001849

Tritanopia (blue-blind)

#00232D

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a154a;
/* rgb */ color: rgb(10, 21, 74);
/* oklch */ color: oklch(22.9% 0.099 268.1);

Tailwind

colors: {
  custom: {
    50: '#56527d',
    500: '#0a154a',
    950: '#000000',
  },
}

SCSS

$custom: #0a154a;
$custom-light: #56527d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a154a",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 74
  },
  "hsl": {
    "h": 229.688,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.22908,
    "c": 0.09892,
    "h": 268.1
  },
  "luminance": 0.01095
}

Semantic roles & 50–950 ramp

primary

#0A154A

secondary

#877729

accent

#D235F3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#03020A

muted

#78787C

Preview Lab

Preview with #0A154A

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

Preview Lab → · Contrast checker → · Palette generator →