#131A3F#131A3F

#131A3F is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.5% C 0.071 H 271.8°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#131A3F
RGB	rgb(19, 26, 63)
HSL	hsl(230, 54%, 16%)
HSV	hsv(230, 70%, 25%)
CMYK	cmyk(69.8%, 58.7%, 0%, 75.3%)
CIE-LAB	lab(10.82, 10.78, -24.70)
CIE-LCH	lch(10.82, 26.95, 293.57°)
OKLab	oklab(23.53% 0.0023 -0.0708)
OKLCH	oklch(23.53% 0.071 271.8)
XYZ	xyz(1.5349, 1.2360, 4.8593)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131A3F #3F3813

analogous

#13303F #131A3F #22133F

triadic

#131A3F #3F131A #1A3F13

tetradic

#131A3F #3F1330 #3F3813 #133F22

square

#131A3F #3F1330 #3F3813 #133F22

split-complementary

#131A3F #3F2213 #303F13

monochromatic

#070A18 #070A18 #131A3F #212D6E #2F419D

Accessibility & contrast

On white

16.84

#131A3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#131A3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131A3F

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131A3F	#FFFFFF	#000000	##FFFFFF
##131A3F	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061F40

Deuteranopia (green-blind)

#001B3E

Tritanopia (blue-blind)

#002329

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131a3f;
/* rgb */ color: rgb(19, 26, 63);
/* oklch */ color: oklch(23.5% 0.071 271.8);

Tailwind

colors: {
  custom: {
    50: '#565674',
    500: '#131a3f',
    950: '#000000',
  },
}

SCSS

$custom: #131a3f;
$custom-light: #565674;
$custom-dark: #000000;

JSON

{
  "hex": "#131a3f",
  "rgb": {
    "r": 19,
    "g": 26,
    "b": 63
  },
  "hsl": {
    "h": 230.455,
    "s": 53.659,
    "l": 16.078
  },
  "oklch": {
    "l": 0.23529,
    "c": 0.07081,
    "h": 271.8
  },
  "luminance": 0.01236
}

Semantic roles & 50–950 ramp

primary

#131A3F

secondary

#786D36

accent

#C64BDD

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131A3F

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

Preview Lab → · Contrast checker → · Palette generator →