#131D5F#131D5F

#131D5F is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.3% C 0.117 H 269.8°. Best body text is #FFFFFF at 15.34:1 contrast (WCAG AA passes).

Color values

HEX	#131D5F
RGB	rgb(19, 29, 95)
HSL	hsl(232, 67%, 22%)
HSV	hsv(232, 80%, 37%)
CMYK	cmyk(80%, 69.5%, 0%, 62.7%)
CIE-LAB	lab(14.64, 21.85, -40.41)
CIE-LCH	lch(14.64, 45.94, 298.39°)
OKLab	oklab(27.28% -0.0003 -0.1169)
OKLCH	oklch(27.28% 0.117 269.8)
XYZ	xyz(2.7728, 1.8431, 11.0339)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D5F #5F5513

analogous

#13435F #131D5F #2F135F

triadic

#131D5F #5F131D #1D5F13

tetradic

#131D5F #5F1343 #5F5513 #135F2F

square

#131D5F #5F1343 #5F5513 #135F2F

split-complementary

#131D5F #5F2F13 #435F13

monochromatic

#05081A #090D2C #131D5F #1D2D92 #273CC5

Accessibility & contrast

On white

15.34

#131D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#131D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D5F

15.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D5F	#FFFFFF	#000000	##FFFFFF
##131D5F	1.00	15.34	1.37	15.34
#FFFFFF	15.34	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002961

Deuteranopia (green-blind)

#00215E

Tritanopia (blue-blind)

#002E3B

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #131d5f;
/* rgb */ color: rgb(19, 29, 95);
/* oklch */ color: oklch(27.3% 0.117 269.8);

Tailwind

colors: {
  custom: {
    50: '#5f598d',
    500: '#131d5f',
    950: '#000000',
  },
}

SCSS

$custom: #131d5f;
$custom-light: #5f598d;
$custom-dark: #000000;

JSON

{
  "hex": "#131d5f",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 95
  },
  "hsl": {
    "h": 232.105,
    "s": 66.667,
    "l": 22.353
  },
  "oklch": {
    "l": 0.27285,
    "c": 0.11688,
    "h": 269.8
  },
  "luminance": 0.01843
}

Semantic roles & 50–950 ramp

primary

#131D5F

secondary

#978A37

accent

#D33EEA

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131D5F

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

Preview Lab → · Contrast checker → · Palette generator →