#131A57#131A57

#131A57 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.109 H 271.3°. Best body text is #FFFFFF at 15.99:1 contrast (WCAG AA passes).

Color values

HEX	#131A57
RGB	rgb(19, 26, 87)
HSL	hsl(234, 64%, 21%)
HSV	hsv(234, 78%, 34%)
CMYK	cmyk(78.2%, 70.1%, 0%, 65.9%)
CIE-LAB	lab(13.02, 20.75, -37.71)
CIE-LCH	lch(13.02, 43.04, 298.82°)
OKLab	oklab(25.85% 0.0024 -0.109)
OKLCH	oklch(25.85% 0.109 271.3)
XYZ	xyz(2.3577, 1.5651, 9.1928)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131A57 #575013

analogous

#133C57 #131A57 #2E1357

triadic

#131A57 #57131A #1A5713

tetradic

#131A57 #57133C #575013 #13572E

square

#131A57 #57133C #575013 #13572E

split-complementary

#131A57 #572E13 #3C5713

monochromatic

#050819 #080B25 #131A57 #1E2989 #2938BB

Accessibility & contrast

On white

15.99

#131A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#131A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131A57

15.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131A57	#FFFFFF	#000000	##FFFFFF
##131A57	1.00	15.99	1.31	15.99
#FFFFFF	15.99	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#001E56

Tritanopia (blue-blind)

#002A35

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131a57;
/* rgb */ color: rgb(19, 26, 87);
/* oklch */ color: oklch(25.8% 0.109 271.3);

Tailwind

colors: {
  custom: {
    50: '#5d5687',
    500: '#131a57',
    950: '#000000',
  },
}

SCSS

$custom: #131a57;
$custom-light: #5d5687;
$custom-dark: #000000;

JSON

{
  "hex": "#131a57",
  "rgb": {
    "r": 19,
    "g": 26,
    "b": 87
  },
  "hsl": {
    "h": 233.824,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25847,
    "c": 0.10902,
    "h": 271.3
  },
  "luminance": 0.01565
}

Semantic roles & 50–950 ramp

primary

#131A57

secondary

#8F8636

accent

#D641E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #131A57

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

Preview Lab → · Contrast checker → · Palette generator →