#151A4D#151A4D

#151A4D is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 25.0% C 0.093 H 273.3°. Best body text is #FFFFFF at 16.32:1 contrast (WCAG AA passes).

Color values

HEX	#151A4D
RGB	rgb(21, 26, 77)
HSL	hsl(235, 57%, 19%)
HSV	hsv(235, 73%, 30%)
CMYK	cmyk(72.7%, 66.2%, 0%, 69.8%)
CIE-LAB	lab(12.18, 16.97, -32.25)
CIE-LCH	lch(12.18, 36.45, 297.76°)
OKLab	oklab(24.97% 0.0054 -0.0929)
OKLCH	oklch(24.97% 0.093 273.3)
XYZ	xyz(2.0178, 1.4339, 7.1902)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151A4D #4D4815

analogous

#15364D #151A4D #2C154D

triadic

#151A4D #4D151A #1A4D15

tetradic

#151A4D #4D1536 #4D4815 #154D2C

square

#151A4D #4D1536 #4D4815 #154D2C

split-complementary

#151A4D #4D2C15 #364D15

monochromatic

#070818 #080A1D #151A4D #222A7D #2F3AAD

Accessibility & contrast

On white

16.32

#151A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#151A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151A4D

16.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151A4D	#FFFFFF	#000000	##FFFFFF
##151A4D	1.00	16.32	1.29	16.32
#FFFFFF	16.32	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224F

Deuteranopia (green-blind)

#001D4C

Tritanopia (blue-blind)

#002730

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151a4d;
/* rgb */ color: rgb(21, 26, 77);
/* oklch */ color: oklch(25.0% 0.093 273.3);

Tailwind

colors: {
  custom: {
    50: '#5b567f',
    500: '#151a4d',
    950: '#000000',
  },
}

SCSS

$custom: #151a4d;
$custom-light: #5b567f;
$custom-dark: #000000;

JSON

{
  "hex": "#151a4d",
  "rgb": {
    "r": 21,
    "g": 26,
    "b": 77
  },
  "hsl": {
    "h": 234.643,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.24968,
    "c": 0.09307,
    "h": 273.3
  },
  "luminance": 0.01434
}

Semantic roles & 50–950 ramp

primary

#151A4D

secondary

#857E39

accent

#D347E0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #151A4D

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

Preview Lab → · Contrast checker → · Palette generator →