#151F4A#151F4A

#151F4A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.081 H 270.0°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#151F4A
RGB	rgb(21, 31, 74)
HSL	hsl(229, 56%, 19%)
HSV	hsv(229, 72%, 29%)
CMYK	cmyk(71.6%, 58.1%, 0%, 71%)
CIE-LAB	lab(13.43, 11.97, -28.15)
CIE-LCH	lch(13.43, 30.59, 293.03°)
OKLab	oklab(25.82% 0 -0.0808)
OKLCH	oklch(25.82% 0.081 270)
XYZ	xyz(2.0349, 1.6336, 6.6853)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F4A #4A4015

analogous

#15394A #151F4A #25154A

triadic

#151F4A #4A151F #1F4A15

tetradic

#151F4A #4A1539 #4A4015 #154A25

square

#151F4A #4A1539 #4A4015 #154A25

split-complementary

#151F4A #4A2515 #394A15

monochromatic

#070A18 #070B1A #151F4A #23337A #3047A9

Accessibility & contrast

On white

15.83

#151F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#151F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F4A

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F4A	#FFFFFF	#000000	##FFFFFF
##151F4A	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05254C

Deuteranopia (green-blind)

#002049

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151f4a;
/* rgb */ color: rgb(21, 31, 74);
/* oklch */ color: oklch(25.8% 0.081 270.0);

Tailwind

colors: {
  custom: {
    50: '#595a7d',
    500: '#151f4a',
    950: '#000000',
  },
}

SCSS

$custom: #151f4a;
$custom-light: #595a7d;
$custom-dark: #000000;

JSON

{
  "hex": "#151f4a",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 74
  },
  "hsl": {
    "h": 228.679,
    "s": 55.789,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25822,
    "c": 0.0808,
    "h": 270
  },
  "luminance": 0.01634
}

Semantic roles & 50–950 ramp

primary

#151F4A

secondary

#827439

accent

#C349DF

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #151F4A

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

Preview Lab → · Contrast checker → · Palette generator →