#131B4F#131B4F

#131B4F is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.095 H 271.1°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#131B4F
RGB	rgb(19, 27, 79)
HSL	hsl(232, 61%, 19%)
HSV	hsv(232, 76%, 31%)
CMYK	cmyk(75.9%, 65.8%, 0%, 69%)
CIE-LAB	lab(12.52, 16.72, -33.07)
CIE-LCH	lch(12.52, 37.06, 296.81°)
OKLab	oklab(25.24% 0.0019 -0.0954)
OKLCH	oklch(25.24% 0.095 271.1)
XYZ	xyz(2.0713, 1.4866, 7.5734)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B4F #4F4713

analogous

#13394F #131B4F #29134F

triadic

#131B4F #4F131B #1B4F13

tetradic

#131B4F #4F1339 #4F4713 #134F29

square

#131B4F #4F1339 #4F4713 #134F29

split-complementary

#131B4F #4F2913 #394F13

monochromatic

#060819 #070A1E #131B4F #1F2C80 #2B3DB2

Accessibility & contrast

On white

16.19

#131B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#131B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B4F

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B4F	#FFFFFF	#000000	##FFFFFF
##131B4F	1.00	16.19	1.30	16.19
#FFFFFF	16.19	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002351

Deuteranopia (green-blind)

#001E4E

Tritanopia (blue-blind)

#002832

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #131b4f;
/* rgb */ color: rgb(19, 27, 79);
/* oklch */ color: oklch(25.2% 0.095 271.1);

Tailwind

colors: {
  custom: {
    50: '#5a5781',
    500: '#131b4f',
    950: '#000000',
  },
}

SCSS

$custom: #131b4f;
$custom-light: #5a5781;
$custom-dark: #000000;

JSON

{
  "hex": "#131b4f",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 79
  },
  "hsl": {
    "h": 232,
    "s": 61.224,
    "l": 19.216
  },
  "oklch": {
    "l": 0.25243,
    "c": 0.0954,
    "h": 271.1
  },
  "luminance": 0.01487
}

Semantic roles & 50–950 ramp

primary

#131B4F

secondary

#887D36

accent

#CF43E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131B4F

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

Preview Lab → · Contrast checker → · Palette generator →