#131A4B#131A4B

#131A4B is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.091 H 271.8°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#131A4B
RGB	rgb(19, 26, 75)
HSL	hsl(233, 60%, 18%)
HSV	hsv(233, 75%, 29%)
CMYK	cmyk(74.7%, 65.3%, 0%, 70.6%)
CIE-LAB	lab(11.86, 15.80, -31.40)
CIE-LCH	lch(11.86, 35.15, 296.71°)
OKLab	oklab(24.63% 0.0029 -0.0905)
OKLCH	oklch(24.63% 0.091 271.8)
XYZ	xyz(1.9075, 1.3851, 6.8221)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131A4B #4B4413

analogous

#13364B #131A4B #28134B

triadic

#131A4B #4B131A #1A4B13

tetradic

#131A4B #4B1336 #4B4413 #134B28

square

#131A4B #4B1336 #4B4413 #134B28

split-complementary

#131A4B #4B2813 #364B13

monochromatic

#060818 #07091A #131A4B #1F2B7C #2C3CAD

Accessibility & contrast

On white

16.44

#131A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131A4B

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131A4B	#FFFFFF	#000000	##FFFFFF
##131A4B	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224D

Deuteranopia (green-blind)

#001D4A

Tritanopia (blue-blind)

#00262F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131a4b;
/* rgb */ color: rgb(19, 26, 75);
/* oklch */ color: oklch(24.6% 0.091 271.8);

Tailwind

colors: {
  custom: {
    50: '#59567e',
    500: '#131a4b',
    950: '#000000',
  },
}

SCSS

$custom: #131a4b;
$custom-light: #59567e;
$custom-dark: #000000;

JSON

{
  "hex": "#131a4b",
  "rgb": {
    "r": 19,
    "g": 26,
    "b": 75
  },
  "hsl": {
    "h": 232.5,
    "s": 59.574,
    "l": 18.431
  },
  "oklch": {
    "l": 0.24634,
    "c": 0.09054,
    "h": 271.8
  },
  "luminance": 0.01385
}

Semantic roles & 50–950 ramp

primary

#131A4B

secondary

#847A36

accent

#CF45E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131A4B

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

Preview Lab → · Contrast checker → · Palette generator →