#131F4A#131F4A

#131F4A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.082 H 268.4°. Best body text is #FFFFFF at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#131F4A
RGB	rgb(19, 31, 74)
HSL	hsl(227, 59%, 18%)
HSV	hsv(227, 74%, 29%)
CMYK	cmyk(74.3%, 58.1%, 0%, 71%)
CIE-LAB	lab(13.31, 11.58, -28.36)
CIE-LCH	lch(13.31, 30.64, 292.21°)
OKLab	oklab(25.69% -0.0023 -0.0815)
OKLCH	oklch(25.69% 0.082 268.4)
XYZ	xyz(1.9942, 1.6126, 6.6834)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F4A #4A3E13

analogous

#133A4A #131F4A #22134A

triadic

#131F4A #4A131F #1F4A13

tetradic

#131F4A #4A133A #4A3E13 #134A22

square

#131F4A #4A133A #4A3E13 #134A22

split-complementary

#131F4A #4A2213 #3A4A13

monochromatic

#060A18 #060B19 #131F4A #20337B #2C48AB

Accessibility & contrast

On white

15.88

#131F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#131F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F4A

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F4A	#FFFFFF	#000000	##FFFFFF
##131F4A	1.00	15.88	1.32	15.88
#FFFFFF	15.88	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.88	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: #131f4a;
/* rgb */ color: rgb(19, 31, 74);
/* oklch */ color: oklch(25.7% 0.082 268.4);

Tailwind

colors: {
  custom: {
    50: '#585a7d',
    500: '#131f4a',
    950: '#000000',
  },
}

SCSS

$custom: #131f4a;
$custom-light: #585a7d;
$custom-dark: #000000;

JSON

{
  "hex": "#131f4a",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 74
  },
  "hsl": {
    "h": 226.909,
    "s": 59.14,
    "l": 18.235
  },
  "oklch": {
    "l": 0.25693,
    "c": 0.0815,
    "h": 268.4
  },
  "luminance": 0.01613
}

Semantic roles & 50–950 ramp

primary

#131F4A

secondary

#837236

accent

#C045E2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #131F4A

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

Preview Lab → · Contrast checker → · Palette generator →