#131B64#131B64

#131B64 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.4% C 0.127 H 270.2°. Best body text is #FFFFFF at 15.35:1 contrast (WCAG AA passes).

Color values

HEX	#131B64
RGB	rgb(19, 27, 100)
HSL	hsl(234, 68%, 23%)
HSV	hsv(234, 81%, 39%)
CMYK	cmyk(81%, 73%, 0%, 60.8%)
CIE-LAB	lab(14.64, 25.26, -43.74)
CIE-LCH	lch(14.64, 50.51, 300.01°)
OKLab	oklab(27.44% 0.0005 -0.1266)
OKLCH	oklch(27.44% 0.127 270.2)
XYZ	xyz(2.9600, 1.8421, 12.2537)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B64 #645C13

analogous

#134364 #131B64 #331364

triadic

#131B64 #64131B #1B6413

tetradic

#131B64 #641343 #645C13 #136433

square

#131B64 #641343 #645C13 #136433

split-complementary

#131B64 #643313 #436413

monochromatic

#05071A #090D31 #131B64 #1D2997 #2737CB

Accessibility & contrast

On white

15.35

#131B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#131B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B64

15.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B64	#FFFFFF	#000000	##FFFFFF
##131B64	1.00	15.35	1.37	15.35
#FFFFFF	15.35	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002966

Deuteranopia (green-blind)

#002163

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #131b64;
/* rgb */ color: rgb(19, 27, 100);
/* oklch */ color: oklch(27.4% 0.127 270.2);

Tailwind

colors: {
  custom: {
    50: '#605791',
    500: '#131b64',
    950: '#000000',
  },
}

SCSS

$custom: #131b64;
$custom-light: #605791;
$custom-dark: #000000;

JSON

{
  "hex": "#131b64",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 100
  },
  "hsl": {
    "h": 234.074,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.27439,
    "c": 0.12661,
    "h": 270.2
  },
  "luminance": 0.01842
}

Semantic roles & 50–950 ramp

primary

#131B64

secondary

#9C9237

accent

#DA3DEB

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #131B64

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

Preview Lab → · Contrast checker → · Palette generator →