#131E4B#131E4B

#131E4B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.5% C 0.085 H 269.2°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#131E4B
RGB	rgb(19, 30, 75)
HSL	hsl(228, 60%, 18%)
HSV	hsv(228, 75%, 29%)
CMYK	cmyk(74.7%, 60%, 0%, 70.6%)
CIE-LAB	lab(13.08, 12.77, -29.43)
CIE-LCH	lch(13.08, 32.08, 293.45°)
OKLab	oklab(25.55% -0.0011 -0.0846)
OKLCH	oklch(25.55% 0.085 269.2)
XYZ	xyz(2.0024, 1.5748, 6.8537)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131E4B #4B4013

analogous

#133A4B #131E4B #24134B

triadic

#131E4B #4B131E #1E4B13

tetradic

#131E4B #4B133A #4B4013 #134B24

square

#131E4B #4B133A #4B4013 #134B24

split-complementary

#131E4B #4B2413 #3A4B13

monochromatic

#060A18 #070A1A #131E4B #1F327C #2C45AD

Accessibility & contrast

On white

15.97

#131E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#131E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131E4B

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131E4B	#FFFFFF	#000000	##FFFFFF
##131E4B	1.00	15.97	1.32	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01244D

Deuteranopia (green-blind)

#001F4A

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131e4b;
/* rgb */ color: rgb(19, 30, 75);
/* oklch */ color: oklch(25.5% 0.085 269.2);

Tailwind

colors: {
  custom: {
    50: '#59597e',
    500: '#131e4b',
    950: '#000000',
  },
}

SCSS

$custom: #131e4b;
$custom-light: #59597e;
$custom-dark: #000000;

JSON

{
  "hex": "#131e4b",
  "rgb": {
    "r": 19,
    "g": 30,
    "b": 75
  },
  "hsl": {
    "h": 228.214,
    "s": 59.574,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25545,
    "c": 0.08462,
    "h": 269.2
  },
  "luminance": 0.01575
}

Semantic roles & 50–950 ramp

primary

#131E4B

secondary

#847436

accent

#C445E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131E4B

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

Preview Lab → · Contrast checker → · Palette generator →