#131D51#131D51

#131D51 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.096 H 270.1°. Best body text is #FFFFFF at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#131D51
RGB	rgb(19, 29, 81)
HSL	hsl(230, 62%, 20%)
HSV	hsv(230, 77%, 32%)
CMYK	cmyk(76.5%, 64.2%, 0%, 68.2%)
CIE-LAB	lab(13.30, 16.05, -33.18)
CIE-LCH	lch(13.30, 36.86, 295.82°)
OKLab	oklab(25.88% 0.0001 -0.0957)
OKLCH	oklch(25.88% 0.096 270.1)
XYZ	xyz(2.1926, 1.6110, 7.9784)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D51 #514713

analogous

#133C51 #131D51 #281351

triadic

#131D51 #51131D #1D5113

tetradic

#131D51 #51133C #514713 #135128

square

#131D51 #51133C #514713 #135128

split-complementary

#131D51 #512813 #3C5113

monochromatic

#060919 #070B1F #131D51 #1F2F83 #2A40B4

Accessibility & contrast

On white

15.88

#131D51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#131D51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D51

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D51	#FFFFFF	#000000	##FFFFFF
##131D51	1.00	15.88	1.32	15.88
#FFFFFF	15.88	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002553

Deuteranopia (green-blind)

#001F50

Tritanopia (blue-blind)

#002A33

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131d51;
/* rgb */ color: rgb(19, 29, 81);
/* oklch */ color: oklch(25.9% 0.096 270.1);

Tailwind

colors: {
  custom: {
    50: '#5b5882',
    500: '#131d51',
    950: '#000000',
  },
}

SCSS

$custom: #131d51;
$custom-light: #5b5882;
$custom-dark: #000000;

JSON

{
  "hex": "#131d51",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 81
  },
  "hsl": {
    "h": 230.323,
    "s": 62,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25876,
    "c": 0.09566,
    "h": 270.1
  },
  "luminance": 0.01611
}

Semantic roles & 50–950 ramp

primary

#131D51

secondary

#8A7C36

accent

#CB43E5

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #131D51

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

Preview Lab → · Contrast checker → · Palette generator →