#131D43#131D43

#131D43 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.073 H 269.3°. Best body text is #FFFFFF at 16.35:1 contrast (WCAG AA passes).

Color values

HEX	#131D43
RGB	rgb(19, 29, 67)
HSL	hsl(228, 56%, 17%)
HSV	hsv(228, 72%, 26%)
CMYK	cmyk(71.6%, 56.7%, 0%, 73.7%)
CIE-LAB	lab(12.11, 10.14, -25.44)
CIE-LCH	lch(12.11, 27.39, 291.74°)
OKLab	oklab(24.6% -0.0008 -0.0729)
OKLCH	oklch(24.6% 0.073 269.3)
XYZ	xyz(1.7207, 1.4223, 5.4929)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D43 #433913

analogous

#133543 #131D43 #211343

triadic

#131D43 #43131D #1D4313

tetradic

#131D43 #431335 #433913 #134321

square

#131D43 #431335 #433913 #134321

split-complementary

#131D43 #432113 #354313

monochromatic

#070A18 #070A18 #131D43 #213273 #2E46A2

Accessibility & contrast

On white

16.35

#131D43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131D43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D43

16.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D43	#FFFFFF	#000000	##FFFFFF
##131D43	1.00	16.35	1.28	16.35
#FFFFFF	16.35	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#082244

Deuteranopia (green-blind)

#011E42

Tritanopia (blue-blind)

#00262C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131d43;
/* rgb */ color: rgb(19, 29, 67);
/* oklch */ color: oklch(24.6% 0.073 269.3);

Tailwind

colors: {
  custom: {
    50: '#575877',
    500: '#131d43',
    950: '#000000',
  },
}

SCSS

$custom: #131d43;
$custom-light: #575877;
$custom-dark: #000000;

JSON

{
  "hex": "#131d43",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 67
  },
  "hsl": {
    "h": 227.5,
    "s": 55.814,
    "l": 16.863
  },
  "oklch": {
    "l": 0.24603,
    "c": 0.07291,
    "h": 269.3
  },
  "luminance": 0.01422
}

Semantic roles & 50–950 ramp

primary

#131D43

secondary

#7C6D36

accent

#C049DF

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #131D43

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

Preview Lab → · Contrast checker → · Palette generator →