#131D4E#131D4E

#131D4E is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.6% C 0.091 H 270.0°. Best body text is #FFFFFF at 15.99:1 contrast (WCAG AA passes).

Color values

HEX	#131D4E
RGB	rgb(19, 29, 78)
HSL	hsl(230, 61%, 19%)
HSV	hsv(230, 76%, 31%)
CMYK	cmyk(75.6%, 62.8%, 0%, 69.4%)
CIE-LAB	lab(13.03, 14.79, -31.57)
CIE-LCH	lch(13.03, 34.86, 295.11°)
OKLab	oklab(25.59% 0 -0.0909)
OKLCH	oklch(25.59% 0.091 270)
XYZ	xyz(2.0826, 1.5670, 7.3990)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D4E #4E4413

analogous

#133B4E #131D4E #27134E

triadic

#131D4E #4E131D #1D4E13

tetradic

#131D4E #4E133B #4E4413 #134E27

square

#131D4E #4E133B #4E4413 #134E27

split-complementary

#131D4E #4E2713 #3B4E13

monochromatic

#060919 #070B1D #131D4E #1F2F7F #2B42B0

Accessibility & contrast

On white

15.99

#131D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#131D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D4E

15.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D4E	#FFFFFF	#000000	##FFFFFF
##131D4E	1.00	15.99	1.31	15.99
#FFFFFF	15.99	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002450

Deuteranopia (green-blind)

#001F4D

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131d4e;
/* rgb */ color: rgb(19, 29, 78);
/* oklch */ color: oklch(25.6% 0.091 270.0);

Tailwind

colors: {
  custom: {
    50: '#5a5880',
    500: '#131d4e',
    950: '#000000',
  },
}

SCSS

$custom: #131d4e;
$custom-light: #5a5880;
$custom-dark: #000000;

JSON

{
  "hex": "#131d4e",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 78
  },
  "hsl": {
    "h": 229.831,
    "s": 60.825,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25591,
    "c": 0.09092,
    "h": 270
  },
  "luminance": 0.01567
}

Semantic roles & 50–950 ramp

primary

#131D4E

secondary

#877936

accent

#C944E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131D4E

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

Preview Lab → · Contrast checker → · Palette generator →