#131F53#131F53

#131F53 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.5% C 0.096 H 269.0°. Best body text is #FFFFFF at 15.57:1 contrast (WCAG AA passes).

Color values

HEX	#131F53
RGB	rgb(19, 31, 83)
HSL	hsl(229, 63%, 20%)
HSV	hsv(229, 77%, 33%)
CMYK	cmyk(77.1%, 62.7%, 0%, 67.5%)
CIE-LAB	lab(14.07, 15.39, -33.27)
CIE-LCH	lch(14.07, 36.66, 294.83°)
OKLab	oklab(26.51% -0.0017 -0.0959)
OKLCH	oklch(26.51% 0.096 269)
XYZ	xyz(2.3193, 1.7427, 8.3961)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F53 #534713

analogous

#133F53 #131F53 #271353

triadic

#131F53 #53131F #1F5313

tetradic

#131F53 #53133F #534713 #135327

square

#131F53 #53133F #534713 #135327

split-complementary

#131F53 #532713 #3F5313

monochromatic

#060919 #080C21 #131F53 #1E3285 #2A44B7

Accessibility & contrast

On white

15.57

#131F53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#131F53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F53

15.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F53	#FFFFFF	#000000	##FFFFFF
##131F53	1.00	15.57	1.35	15.57
#FFFFFF	15.57	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002755

Deuteranopia (green-blind)

#002152

Tritanopia (blue-blind)

#002C35

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131f53;
/* rgb */ color: rgb(19, 31, 83);
/* oklch */ color: oklch(26.5% 0.096 269.0);

Tailwind

colors: {
  custom: {
    50: '#5b5a84',
    500: '#131f53',
    950: '#000000',
  },
}

SCSS

$custom: #131f53;
$custom-light: #5b5a84;
$custom-dark: #000000;

JSON

{
  "hex": "#131f53",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 83
  },
  "hsl": {
    "h": 228.75,
    "s": 62.745,
    "l": 20
  },
  "oklch": {
    "l": 0.26512,
    "c": 0.09592,
    "h": 269
  },
  "luminance": 0.01743
}

Semantic roles & 50–950 ramp

primary

#131F53

secondary

#8B7B36

accent

#C742E6

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #131F53

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

Preview Lab → · Contrast checker → · Palette generator →