#131D4D#131D4D

#131D4D is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.5% C 0.089 H 270.0°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#131D4D
RGB	rgb(19, 29, 77)
HSL	hsl(230, 60%, 19%)
HSV	hsv(230, 75%, 30%)
CMYK	cmyk(75.3%, 62.3%, 0%, 69.8%)
CIE-LAB	lab(12.94, 14.37, -31.02)
CIE-LCH	lch(12.94, 34.19, 294.85°)
OKLab	oklab(25.5% 0 -0.0893)
OKLCH	oklch(25.5% 0.089 270)
XYZ	xyz(2.0470, 1.5528, 7.2116)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D4D #4D4313

analogous

#133A4D #131D4D #26134D

triadic

#131D4D #4D131D #1D4D13

tetradic

#131D4D #4D133A #4D4313 #134D26

square

#131D4D #4D133A #4D4313 #134D26

split-complementary

#131D4D #4D2613 #3A4D13

monochromatic

#060919 #070B1C #131D4D #1F2F7E #2B42AF

Accessibility & contrast

On white

16.02

#131D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#131D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D4D

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D4D	#FFFFFF	#000000	##FFFFFF
##131D4D	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244F

Deuteranopia (green-blind)

#001F4C

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #131d4d;
/* rgb */ color: rgb(19, 29, 77);
/* oklch */ color: oklch(25.5% 0.089 270.0);

Tailwind

colors: {
  custom: {
    50: '#59587f',
    500: '#131d4d',
    950: '#000000',
  },
}

SCSS

$custom: #131d4d;
$custom-light: #59587f;
$custom-dark: #000000;

JSON

{
  "hex": "#131d4d",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 77
  },
  "hsl": {
    "h": 229.655,
    "s": 60.417,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25497,
    "c": 0.08932,
    "h": 270
  },
  "luminance": 0.01553
}

Semantic roles & 50–950 ramp

primary

#131D4D

secondary

#867836

accent

#C844E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131D4D

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

Preview Lab → · Contrast checker → · Palette generator →