#131C51#131C51

#131C51 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.097 H 270.6°. Best body text is #FFFFFF at 16.00:1 contrast (WCAG AA passes).

Color values

HEX	#131C51
RGB	rgb(19, 28, 81)
HSL	hsl(231, 62%, 20%)
HSV	hsv(231, 77%, 32%)
CMYK	cmyk(76.5%, 65.4%, 0%, 68.2%)
CIE-LAB	lab(13.00, 16.80, -33.66)
CIE-LCH	lch(13.00, 37.62, 296.53°)
OKLab	oklab(25.66% 0.001 -0.0971)
OKLCH	oklch(25.66% 0.097 270.6)
XYZ	xyz(2.1685, 1.5628, 7.9704)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.66

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C51 #514813

analogous

#133B51 #131C51 #291351

triadic

#131C51 #51131C #1C5113

tetradic

#131C51 #51133B #514813 #135129

square

#131C51 #51133B #514813 #135129

split-complementary

#131C51 #512913 #3B5113

monochromatic

#060919 #070B1F #131C51 #1F2D83 #2A3EB4

Accessibility & contrast

On white

16.00

#131C51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#131C51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C51

16.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C51	#FFFFFF	#000000	##FFFFFF
##131C51	1.00	16.00	1.31	16.00
#FFFFFF	16.00	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002453

Deuteranopia (green-blind)

#001F50

Tritanopia (blue-blind)

#002933

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131c51;
/* rgb */ color: rgb(19, 28, 81);
/* oklch */ color: oklch(25.7% 0.097 270.6);

Tailwind

colors: {
  custom: {
    50: '#5b5782',
    500: '#131c51',
    950: '#000000',
  },
}

SCSS

$custom: #131c51;
$custom-light: #5b5782;
$custom-dark: #000000;

JSON

{
  "hex": "#131c51",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 81
  },
  "hsl": {
    "h": 231.29,
    "s": 62,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25657,
    "c": 0.0971,
    "h": 270.6
  },
  "luminance": 0.01563
}

Semantic roles & 50–950 ramp

primary

#131C51

secondary

#8A7D36

accent

#CE43E5

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #131C51

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

Preview Lab → · Contrast checker → · Palette generator →