#131758#131758

#131758 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.114 H 272.2°. Best body text is #FFFFFF at 16.26:1 contrast (WCAG AA passes).

Color values

HEX	#131758
RGB	rgb(19, 23, 88)
HSL	hsl(237, 64%, 21%)
HSV	hsv(237, 78%, 35%)
CMYK	cmyk(78.4%, 73.9%, 0%, 65.5%)
CIE-LAB	lab(12.32, 23.29, -39.52)
CIE-LCH	lch(12.32, 45.87, 300.50°)
OKLab	oklab(25.37% 0.0044 -0.1143)
OKLCH	oklch(25.37% 0.114 272.2)
XYZ	xyz(2.3358, 1.4556, 9.3885)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131758 #585413

analogous

#133958 #131758 #311358

triadic

#131758 #581317 #175813

tetradic

#131758 #581339 #585413 #135831

square

#131758 #581339 #585413 #135831

split-complementary

#131758 #583113 #395813

monochromatic

#050719 #080A26 #131758 #1E248A #2931BD

Accessibility & contrast

On white

16.26

#131758 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131758 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131758

16.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131758	#FFFFFF	#000000	##FFFFFF
##131758	1.00	16.26	1.29	16.26
#FFFFFF	16.26	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235A

Deuteranopia (green-blind)

#001D57

Tritanopia (blue-blind)

#002935

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131758;
/* rgb */ color: rgb(19, 23, 88);
/* oklch */ color: oklch(25.4% 0.114 272.2);

Tailwind

colors: {
  custom: {
    50: '#5d5488',
    500: '#131758',
    950: '#000000',
  },
}

SCSS

$custom: #131758;
$custom-light: #5d5488;
$custom-dark: #000000;

JSON

{
  "hex": "#131758",
  "rgb": {
    "r": 19,
    "g": 23,
    "b": 88
  },
  "hsl": {
    "h": 236.522,
    "s": 64.486,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25374,
    "c": 0.11439,
    "h": 272.2
  },
  "luminance": 0.01456
}

Semantic roles & 50–950 ramp

primary

#131758

secondary

#908B37

accent

#DE40E7

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #131758

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

Preview Lab → · Contrast checker → · Palette generator →