#131858#131858

#131858 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.6% C 0.113 H 271.9°. Best body text is #FFFFFF at 16.16:1 contrast (WCAG AA passes).

Color values

HEX	#131858
RGB	rgb(19, 24, 88)
HSL	hsl(236, 64%, 21%)
HSV	hsv(236, 78%, 35%)
CMYK	cmyk(78.4%, 72.7%, 0%, 65.5%)
CIE-LAB	lab(12.58, 22.58, -39.10)
CIE-LCH	lch(12.58, 45.15, 300.01°)
OKLab	oklab(25.56% 0.0038 -0.113)
OKLCH	oklch(25.56% 0.113 271.9)
XYZ	xyz(2.3560, 1.4961, 9.3952)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131858 #585313

analogous

#133A58 #131858 #301358

triadic

#131858 #581318 #185813

tetradic

#131858 #58133A #585313 #135830

square

#131858 #58133A #585313 #135830

split-complementary

#131858 #583013 #3A5813

monochromatic

#050719 #080A26 #131858 #1E268A #2933BD

Accessibility & contrast

On white

16.16

#131858 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#131858 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131858

16.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131858	#FFFFFF	#000000	##FFFFFF
##131858	1.00	16.16	1.30	16.16
#FFFFFF	16.16	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245A

Deuteranopia (green-blind)

#001D57

Tritanopia (blue-blind)

#002935

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #131858;
/* rgb */ color: rgb(19, 24, 88);
/* oklch */ color: oklch(25.6% 0.113 271.9);

Tailwind

colors: {
  custom: {
    50: '#5d5588',
    500: '#131858',
    950: '#000000',
  },
}

SCSS

$custom: #131858;
$custom-light: #5d5588;
$custom-dark: #000000;

JSON

{
  "hex": "#131858",
  "rgb": {
    "r": 19,
    "g": 24,
    "b": 88
  },
  "hsl": {
    "h": 235.652,
    "s": 64.486,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25563,
    "c": 0.11311,
    "h": 271.9
  },
  "luminance": 0.01496
}

Semantic roles & 50–950 ramp

primary

#131858

secondary

#908A37

accent

#DB40E7

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #131858

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

Preview Lab → · Contrast checker → · Palette generator →