#131759#131759

#131759 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.5% C 0.116 H 272.1°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#131759
RGB	rgb(19, 23, 89)
HSL	hsl(237, 65%, 21%)
HSV	hsv(237, 79%, 35%)
CMYK	cmyk(78.7%, 74.2%, 0%, 65.1%)
CIE-LAB	lab(12.43, 23.68, -40.02)
CIE-LCH	lch(12.43, 46.50, 300.61°)
OKLab	oklab(25.49% 0.0043 -0.1158)
OKLCH	oklch(25.49% 0.116 272.1)
XYZ	xyz(2.3775, 1.4723, 9.6081)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131759 #595513

analogous

#133A59 #131759 #321359

triadic

#131759 #591317 #175913

tetradic

#131759 #59133A #595513 #135932

square

#131759 #59133A #595513 #135932

split-complementary

#131759 #593213 #3A5913

monochromatic

#050719 #080A27 #131759 #1E248B #2931BE

Accessibility & contrast

On white

16.22

#131759 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131759 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131759

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131759	#FFFFFF	#000000	##FFFFFF
##131759	1.00	16.22	1.29	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245B

Deuteranopia (green-blind)

#001D58

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131759;
/* rgb */ color: rgb(19, 23, 89);
/* oklch */ color: oklch(25.5% 0.116 272.1);

Tailwind

colors: {
  custom: {
    50: '#5d5489',
    500: '#131759',
    950: '#000000',
  },
}

SCSS

$custom: #131759;
$custom-light: #5d5489;
$custom-dark: #000000;

JSON

{
  "hex": "#131759",
  "rgb": {
    "r": 19,
    "g": 23,
    "b": 89
  },
  "hsl": {
    "h": 236.571,
    "s": 64.815,
    "l": 21.176
  },
  "oklch": {
    "l": 0.25485,
    "c": 0.11584,
    "h": 272.1
  },
  "luminance": 0.01473
}

Semantic roles & 50–950 ramp

primary

#131759

secondary

#918C37

accent

#DE40E8

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #131759

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

Preview Lab → · Contrast checker → · Palette generator →