#131D5A#131D5A

#131D5A is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.8% C 0.109 H 270.0°. Best body text is #FFFFFF at 15.54:1 contrast (WCAG AA passes).

Color values

HEX	#131D5A
RGB	rgb(19, 29, 90)
HSL	hsl(232, 65%, 21%)
HSV	hsv(232, 79%, 35%)
CMYK	cmyk(78.9%, 67.8%, 0%, 64.7%)
CIE-LAB	lab(14.15, 19.80, -37.88)
CIE-LCH	lch(14.15, 42.74, 297.59°)
OKLab	oklab(26.77% 0 -0.1095)
OKLCH	oklch(26.77% 0.109 270)
XYZ	xyz(2.5528, 1.7551, 9.8751)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D5A #5A5013

analogous

#13415A #131D5A #2D135A

triadic

#131D5A #5A131D #1D5A13

tetradic

#131D5A #5A1341 #5A5013 #135A2D

square

#131D5A #5A1341 #5A5013 #135A2D

split-complementary

#131D5A #5A2D13 #415A13

monochromatic

#050819 #080D27 #131D5A #1E2D8D #283EBF

Accessibility & contrast

On white

15.54

#131D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#131D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D5A

15.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D5A	#FFFFFF	#000000	##FFFFFF
##131D5A	1.00	15.54	1.35	15.54
#FFFFFF	15.54	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275C

Deuteranopia (green-blind)

#002159

Tritanopia (blue-blind)

#002D38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131d5a;
/* rgb */ color: rgb(19, 29, 90);
/* oklch */ color: oklch(26.8% 0.109 270.0);

Tailwind

colors: {
  custom: {
    50: '#5d5889',
    500: '#131d5a',
    950: '#000000',
  },
}

SCSS

$custom: #131d5a;
$custom-light: #5d5889;
$custom-dark: #000000;

JSON

{
  "hex": "#131d5a",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 90
  },
  "hsl": {
    "h": 231.549,
    "s": 65.138,
    "l": 21.373
  },
  "oklch": {
    "l": 0.26768,
    "c": 0.10946,
    "h": 270
  },
  "luminance": 0.01755
}

Semantic roles & 50–950 ramp

primary

#131D5A

secondary

#928537

accent

#D040E8

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131D5A

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

Preview Lab → · Contrast checker → · Palette generator →