#131D53#131D53

#131D53 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.099 H 270.1°. Best body text is #FFFFFF at 15.81:1 contrast (WCAG AA passes).

Color values

HEX	#131D53
RGB	rgb(19, 29, 83)
HSL	hsl(231, 63%, 20%)
HSV	hsv(231, 77%, 33%)
CMYK	cmyk(77.1%, 65.1%, 0%, 67.5%)
CIE-LAB	lab(13.48, 16.89, -34.24)
CIE-LCH	lch(13.48, 38.18, 296.26°)
OKLab	oklab(26.07% 0.0001 -0.0988)
OKLCH	oklch(26.07% 0.099 270.1)
XYZ	xyz(2.2687, 1.6415, 8.3792)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D53 #534913

analogous

#133D53 #131D53 #291353

triadic

#131D53 #53131D #1D5313

tetradic

#131D53 #53133D #534913 #135329

square

#131D53 #53133D #534913 #135329

split-complementary

#131D53 #532913 #3D5313

monochromatic

#060919 #080C21 #131D53 #1E2E85 #2A40B7

Accessibility & contrast

On white

15.81

#131D53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#131D53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D53

15.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D53	#FFFFFF	#000000	##FFFFFF
##131D53	1.00	15.81	1.33	15.81
#FFFFFF	15.81	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002655

Deuteranopia (green-blind)

#002052

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131d53;
/* rgb */ color: rgb(19, 29, 83);
/* oklch */ color: oklch(26.1% 0.099 270.1);

Tailwind

colors: {
  custom: {
    50: '#5b5884',
    500: '#131d53',
    950: '#000000',
  },
}

SCSS

$custom: #131d53;
$custom-light: #5b5884;
$custom-dark: #000000;

JSON

{
  "hex": "#131d53",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 83
  },
  "hsl": {
    "h": 230.625,
    "s": 62.745,
    "l": 20
  },
  "oklch": {
    "l": 0.2607,
    "c": 0.09878,
    "h": 270.1
  },
  "luminance": 0.01642
}

Semantic roles & 50–950 ramp

primary

#131D53

secondary

#8B7E36

accent

#CC42E6

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #131D53

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

Preview Lab → · Contrast checker → · Palette generator →