#131A5B#131A5B

#131A5B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.3% C 0.115 H 271.0°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#131A5B
RGB	rgb(19, 26, 91)
HSL	hsl(234, 65%, 22%)
HSV	hsv(234, 79%, 36%)
CMYK	cmyk(79.1%, 71.4%, 0%, 64.3%)
CIE-LAB	lab(13.43, 22.37, -39.73)
CIE-LCH	lch(13.43, 45.60, 299.38°)
OKLab	oklab(26.27% 0.0021 -0.1149)
OKLCH	oklch(26.27% 0.115 271)
XYZ	xyz(2.5256, 1.6323, 10.0775)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131A5B #5B5413

analogous

#133E5B #131A5B #30135B

triadic

#131A5B #5B131A #1A5B13

tetradic

#131A5B #5B133E #5B5413 #135B30

square

#131A5B #5B133E #5B5413 #135B30

split-complementary

#131A5B #5B3013 #3E5B13

monochromatic

#050719 #080C28 #131A5B #1E288E #2837C0

Accessibility & contrast

On white

15.83

#131A5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#131A5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131A5B

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131A5B	#FFFFFF	#000000	##FFFFFF
##131A5B	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265D

Deuteranopia (green-blind)

#001F5A

Tritanopia (blue-blind)

#002B38

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131a5b;
/* rgb */ color: rgb(19, 26, 91);
/* oklch */ color: oklch(26.3% 0.115 271.0);

Tailwind

colors: {
  custom: {
    50: '#5e568a',
    500: '#131a5b',
    950: '#000000',
  },
}

SCSS

$custom: #131a5b;
$custom-light: #5e568a;
$custom-dark: #000000;

JSON

{
  "hex": "#131a5b",
  "rgb": {
    "r": 19,
    "g": 26,
    "b": 91
  },
  "hsl": {
    "h": 234.167,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26272,
    "c": 0.11493,
    "h": 271
  },
  "luminance": 0.01633
}

Semantic roles & 50–950 ramp

primary

#131A5B

secondary

#938A37

accent

#D83FE8

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131A5B

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

Preview Lab → · Contrast checker → · Palette generator →