#131B5D#131B5D

#131B5D is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.117 H 270.6°. Best body text is #FFFFFF at 15.64:1 contrast (WCAG AA passes).

Color values

HEX	#131B5D
RGB	rgb(19, 27, 93)
HSL	hsl(234, 66%, 22%)
HSV	hsv(234, 80%, 36%)
CMYK	cmyk(79.6%, 71%, 0%, 63.5%)
CIE-LAB	lab(13.90, 22.47, -40.30)
CIE-LCH	lch(13.90, 46.14, 299.14°)
OKLab	oklab(26.68% 0.0012 -0.1165)
OKLCH	oklch(26.68% 0.117 270.6)
XYZ	xyz(2.6356, 1.7123, 10.5454)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B5D #5D5513

analogous

#13405D #131B5D #30135D

triadic

#131B5D #5D131B #1B5D13

tetradic

#131B5D #5D1340 #5D5513 #135D30

square

#131B5D #5D1340 #5D5513 #135D30

split-complementary

#131B5D #5D3013 #405D13

monochromatic

#050719 #090C2A #131B5D #1D2A90 #2839C3

Accessibility & contrast

On white

15.64

#131B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#131B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B5D

15.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B5D	#FFFFFF	#000000	##FFFFFF
##131B5D	1.00	15.64	1.34	15.64
#FFFFFF	15.64	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275F

Deuteranopia (green-blind)

#00205C

Tritanopia (blue-blind)

#002D39

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131b5d;
/* rgb */ color: rgb(19, 27, 93);
/* oklch */ color: oklch(26.7% 0.117 270.6);

Tailwind

colors: {
  custom: {
    50: '#5e578c',
    500: '#131b5d',
    950: '#000000',
  },
}

SCSS

$custom: #131b5d;
$custom-light: #5e578c;
$custom-dark: #000000;

JSON

{
  "hex": "#131b5d",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 93
  },
  "hsl": {
    "h": 233.514,
    "s": 66.071,
    "l": 21.961
  },
  "oklch": {
    "l": 0.2668,
    "c": 0.11656,
    "h": 270.6
  },
  "luminance": 0.01713
}

Semantic roles & 50–950 ramp

primary

#131B5D

secondary

#958B37

accent

#D73FE9

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131B5D

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

Preview Lab → · Contrast checker → · Palette generator →