#131F45#131F45

#131F45 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.073 H 267.7°. Best body text is #FFFFFF at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#131F45
RGB	rgb(19, 31, 69)
HSL	hsl(226, 57%, 17%)
HSV	hsv(226, 72%, 27%)
CMYK	cmyk(72.5%, 55.1%, 0%, 72.9%)
CIE-LAB	lab(12.91, 9.46, -25.54)
CIE-LCH	lch(12.91, 27.24, 290.32°)
OKLab	oklab(25.26% -0.0029 -0.0732)
OKLCH	oklch(25.26% 0.073 267.7)
XYZ	xyz(1.8324, 1.5479, 5.8313)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F45 #453913

analogous

#133845 #131F45 #201345

triadic

#131F45 #45131F #1F4513

tetradic

#131F45 #451338 #453913 #134520

square

#131F45 #451338 #453913 #134520

split-complementary

#131F45 #452013 #384513

monochromatic

#070B18 #070B18 #131F45 #203575 #2D4AA5

Accessibility & contrast

On white

16.04

#131F45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#131F45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F45

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F45	#FFFFFF	#000000	##FFFFFF
##131F45	1.00	16.04	1.31	16.04
#FFFFFF	16.04	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2446

Deuteranopia (green-blind)

#021F44

Tritanopia (blue-blind)

#00282E

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #131f45;
/* rgb */ color: rgb(19, 31, 69);
/* oklch */ color: oklch(25.3% 0.073 267.7);

Tailwind

colors: {
  custom: {
    50: '#575a79',
    500: '#131f45',
    950: '#000000',
  },
}

SCSS

$custom: #131f45;
$custom-light: #575a79;
$custom-dark: #000000;

JSON

{
  "hex": "#131f45",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 69
  },
  "hsl": {
    "h": 225.6,
    "s": 56.818,
    "l": 17.255
  },
  "oklch": {
    "l": 0.25264,
    "c": 0.07323,
    "h": 267.7
  },
  "luminance": 0.01548
}

Semantic roles & 50–950 ramp

primary

#131F45

secondary

#7E6C36

accent

#BC48E0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #131F45

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

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